67486 + Interview Questions in Secondary School in Physics

1.	When does the average velocity of a body becomes zero
Answer» ANSWER: if a BODY reverse it's DIRECTION and covers the same displacement it's AVERAGE velocity BECOMES 0

1.

When does the average velocity of a body becomes zero

Answer»

ANSWER:

if a BODY reverse it's DIRECTION and covers the same displacement it's AVERAGE velocity BECOMES 0

Discussion

2.	Calculate the charge of an Alpha particle
Answer» EXPLANATION: I HOPE this ANSWERS HELP you

2.

Calculate the charge of an Alpha particle

Answer»

EXPLANATION:

I HOPE this ANSWERS HELP you

Discussion

3.	3.)aThe average kinetic energy of molecules as substance is a measure of it's heat/ temperature. Choose the correct alternative
Answer» 0 . 5 is the AVERAGE KINETIC ENERGY.

Discussion

4.	Please explain me the answer of the question provided to you in the attachment.It would help alot.I really can't understand this thing. please explain in simple words PLEASEEEEE...i beg u!
Answer» Answer: HOPE helpful my friend Explanation: At p magnetic field is INWARD and at Q magnetic field is OUTWARD. At q magnetic field is larger

4.

Please explain me the answer of the question provided to you in the attachment.It would help alot.I really can't understand this thing. please explain in simple words PLEASEEEEE...i beg u!

Answer»

Answer:

HOPE helpful my friend

Explanation:

At p magnetic field is INWARD and at Q magnetic field is OUTWARD.

At q magnetic field is larger

Discussion

5.	Express each of the following in m s-1, 1km h-1
Answer» Answer: To CONVERT KM h^-1 into m s^-1 multiply the no. with 5/18 and VICE VERSA

5.

Express each of the following in m s-1, 1km h-1

Answer»

Answer:

To CONVERT KM h^-1 into m s^-1 multiply the no. with 5/18

and VICE VERSA

Discussion

6.	Coulumb,s Law.................??
Answer» EXPLANATION: COULOMB’S LAW Coulomb’s law is a quantitative statement about the force between two point charges. When the linear size of charged bodies are MUCH smaller than the distance separating them, the size may be ignored and the charged bodies are treated as point charges. Coulomb measured the force between two point charges and found that it varied inversely as the square of the distance between the charges and was directly proportional to the product of the magnitude of the two charges and acted along the line joining the two charges. Thus, if two point charges q1 , q2 are separated by a distance r in vacuum, the magnitude of the force (F) between them is given by F=Kq1q2/r²

6.

Coulumb,s Law.................??

Answer»

EXPLANATION:

COULOMB’S LAW

Coulomb’s law is a quantitative statement about the force between two

point charges. When the linear size of charged bodies are MUCH smaller

than the distance separating them, the size may be ignored and the

charged bodies are treated as point charges. Coulomb measured the

force between two point charges and found that it varied inversely as

the square of the distance between the charges and was directly

proportional to the product of the magnitude of the two charges and

acted along the line joining the two charges. Thus, if two point charges

q1

, q2

are separated by a distance r in vacuum, the magnitude of the

force (F) between them is given by

F=Kq1q2/r²

Discussion

7.	Does the moment of inertia of l0kg mass remain constant ? Explain
Answer» Explanation: it not ALWAYS CONSTANT because inertia change is directly propoetional to velocity

7.

Does the moment of inertia of l0kg mass remain constant ? Explain

Answer»

Explanation:

it not ALWAYS CONSTANT because inertia change is directly propoetional to velocity

Discussion

8.	(a) Draw magnetic field lines around bar magnet.(b) Explain any two properties of magnetic field lines.(c) A current through a horizontal power line flows in east to west direction. What is the direction of magnetic field at a point directly below it ? State the rule which is used to find the direction of magnetic field in this case.Need a neat diagram please
Answer» Answer: 2. properties of magnetic FIELD: 1,magnetic fields form loops. 2. they do not intersect. 3. these LINES spread out more as they MOVE away from the magnetic poles. please mark me as BRAINY

8.

(a) Draw magnetic field lines around bar magnet.(b) Explain any two properties of magnetic field lines.(c) A current through a horizontal power line flows in east to west direction. What is the direction of magnetic field at a point directly below it ? State the rule which is used to find the direction of magnetic field in this case.Need a neat diagram please

Answer»

Answer:

2. properties of magnetic FIELD:

1,magnetic fields form loops.

2. they do not intersect.

3. these LINES spread out more as they MOVE away from the magnetic poles.

please mark me as BRAINY

Discussion

9.	What is the principal of electric sceen
Answer» $\huge{\tt\pink{Answer:}}$ Principle of ELECTRIC screen is OPERATED by an electric motor that raises and LOWERS the screen via remote control or wall switch. Some Electric projector screens have a simple plug-and-play design, while others like a ceiling recessed screens, REQUIRE significant installation. $\\\\$ $❤♥ Please follow me and mark as brainliest. ♥❤$

9.

What is the principal of electric sceen

Answer»

$\huge{\tt\pink{Answer:}}$

Principle of ELECTRIC screen is OPERATED by an electric motor that raises and LOWERS the screen via remote control or wall switch. Some Electric projector screens have a simple plug-and-play design, while others like a ceiling recessed screens, REQUIRE significant installation.

$\\\\$

$❤♥ Please follow me and mark as brainliest. ♥❤$

Discussion

10.	The distance -time graph for determination--------of an object
Answer» ANSWER: The answer to this QUESTION is Speed. I HOPE IT WILL HELP YOU.

10.

The distance -time graph for determination--------of an object

Answer»

ANSWER:

The answer to this QUESTION is Speed.

I HOPE IT WILL HELP YOU.

Discussion

11.	Why does butter get separated from milk and collect at the top when whirled in a mixer?
Answer» ANSWER: because BUTTER is LIGHTER as it CONTAINS OIL

11.

Why does butter get separated from milk and collect at the top when whirled in a mixer?

Answer»

ANSWER:

because BUTTER is LIGHTER as it CONTAINS OIL

Discussion

12.	Express each of the following in m s-1, 18km min-1
Answer» ANSWER: ANS is 300m/s . is CORRECTED UR PROBLEM.

12.

Express each of the following in m s-1, 18km min-1

Answer»

ANSWER:

ANS is 300m/s . is CORRECTED UR PROBLEM.

Discussion

13.	1) What is the si unitfor specific latent heat of melting
Answer» Explanation: UNIT joule The SPECIFIC latent HEAT (L) of a material… is a measure of the heat energy (Q) per mass (m) released or absorbed during a phase change. is often just called the "latent heat" of the material. uses the SI unit joule per kilogram

13.

1) What is the si unitfor specific latent heat of melting

Answer»

Explanation:

UNIT joule

The SPECIFIC latent HEAT (L) of a material… is a measure of the heat energy (Q) per mass (m) released or absorbed during a phase change. is often just called the "latent heat" of the material. uses the SI unit joule per kilogram

Discussion

14.	Draw magnetic field lines produced around a current carrying straightconductor passing through cardboard. How will the strength of the magnetic field change, when the point where magnetic field is to be determined, is moved away from the straight wire carrying constant current ? Justify your answer.With a neat diagram
Answer» Explanation: magnetic field lines are SHOW the DIRECTION OUTSIDE:from NORTH to South . inside:south to North

14.

Draw magnetic field lines produced around a current carrying straightconductor passing through cardboard. How will the strength of the magnetic field change, when the point where magnetic field is to be determined, is moved away from the straight wire carrying constant current ? Justify your answer.With a neat diagram

Answer»

Explanation:

magnetic field lines are SHOW the DIRECTION

OUTSIDE:from NORTH to South . inside:south to North

Discussion

15.	How much momentum will a dub bell of mass 10 kg transfer to the floor if it falls from a height of 80cm? Take its downward accerlation to be 10 metre per second.
Answer» Answer: 40 kg m/s Explanation: The momentum transferred will be equal to the momentum of the dum bell RIGHT before touching the GROUND. H = 80 cm = 0.8 m a = 10 m/s² u = 0 m/s v² = u² +2 AH = 0² + (2 x 0.8 x 10) = 0 + 16 v = √16 v = 4 m/s m = 10 kg P = m v = 10 x 4 kg m/s =40 kg m/s

15.

How much momentum will a dub bell of mass 10 kg transfer to the floor if it falls from a height of 80cm? Take its downward accerlation to be 10 metre per second.

Answer»

Answer:

40 kg m/s

Explanation:

The momentum transferred will be equal to the momentum of the dum bell RIGHT before touching the GROUND.

H = 80 cm = 0.8 m

a = 10 m/s²

u = 0 m/s

v² = u² +2 AH

= 0² + (2 x 0.8 x 10)

= 0 + 16

v = √16

v = 4 m/s

m = 10 kg

P = m v

= 10 x 4 kg m/s

=40 kg m/s

Discussion

16.	Which wavelength can be most useful for imaging from a satellite in cloud-covered conditions? A. 0.4 µm B. 0.4 nm C. 1.4 µm D. 4 cm E. 4 nm
Answer» Answer: 1.4 is CORRECT answer Explanation: I HOPE this will HELP you

16.

Which wavelength can be most useful for imaging from a satellite in cloud-covered conditions? A. 0.4 µm B. 0.4 nm C. 1.4 µm D. 4 cm E. 4 nm

Answer»

Answer:

1.4 is CORRECT answer

Explanation:

I HOPE this will HELP you

Discussion

17.	Use Gauss theorem to derive expression for electric field E at a distance r – i) from a uniformly charged hollow metallic sphere of radius R when r Rii) in the region between two charged sheets with charge density s & -s and s & s.
Answer» GAUSS THEOREM USING PARTIAL INTEGRATION

Discussion

18.	When a projectile covers same horizontal distance and the initial angles of projection are
Answer» ANSWER: I don't no Explanation: SORRY I don't no

18.

When a projectile covers same horizontal distance and the initial angles of projection are

Answer»

ANSWER:

I don't no

Explanation:

SORRY I don't no

Discussion

19.	If a net charge Q, flows across any cross-section of a conductor in time t, then the current I, through the cross-section is(1) I = /(2) I = Q × t(3) I = Q × t2(4) None
Answer» Answer: The answer to this QUESTION is I = Q / t I HOPE IT WILL HELP YOU.

19.

If a net charge Q, flows across any cross-section of a conductor in time t, then the current I, through the cross-section is(1) I = /(2) I = Q × t(3) I = Q × t2(4) None

Answer»

Answer:

The answer to this QUESTION is I = Q / t

I HOPE IT WILL HELP YOU.

Discussion

20.	A boy of mass 45kg stands on
Answer» ANSWER: SORRY, no answer I have some doubts where he STANDS on? PLEASE let me KNOW?

20.

A boy of mass 45kg stands on

Answer»

ANSWER:

SORRY, no answer I have some doubts

where he STANDS on?

PLEASE let me KNOW?

Discussion

21.	All vectors are_______ vectors 1) unlike 2) null 3) like 4) unit
Answer» ANSWER: UNIT VECTORS hope this will help u

21.

All vectors are_______ vectors 1) unlike 2) null 3) like 4) unit

Answer»

ANSWER:

UNIT VECTORS hope this will help u

Discussion

22.	Quantisation of electric charge means?
Answer» QUANTIZATION of CHARGE means that when we say something has a given charge, we mean that that is how many times the charge of a single electron it has. ... So ELECTRONS have a a NEGATIVE charge, negative charge. And that means that when I rub silk on glass, the glass gets a positive charge. hope it HELPS you...

22.

Quantisation of electric charge means?

Answer»

QUANTIZATION of CHARGE means that when we say something has a given charge, we mean that that is how many times the charge of a single electron it has. ... So ELECTRONS have a a NEGATIVE charge, negative charge. And that means that when I rub silk on glass, the glass gets a positive charge.

hope it HELPS you...

Discussion

23.	A ball falls under gravity from a height of 10mwith an initial down ward velocity u. It colliders with the ground. Loss 50%of its energy in collision and then rises back to the same height. Find the initial velocity u. एक गेंद गुरुत्वाकर्षण वेग के साथ 10mकी ऊँचाई से नीचे गिरती है। यह जमीन से टकराता है।
Answer» HYY Dude Given : height h=10m Initial velocity = V° let m be the mass of BALL. Ball is projected downward with velocity V° from height h. Total energy =mgh +1/2mv°² Total Energy COLLISION = 50/100x mgh + 1/2 mv°² the ball rises back to same height after collision hence V°=√2gh =√2x9.8x 10 =14 m/s therefore initial velocity = 14m/s Hope it's helps you Plz marked in brainlest answer

23.

A ball falls under gravity from a height of 10mwith an initial down ward velocity u. It colliders with the ground. Loss 50%of its energy in collision and then rises back to the same height. Find the initial velocity u. एक गेंद गुरुत्वाकर्षण वेग के साथ 10mकी ऊँचाई से नीचे गिरती है। यह जमीन से टकराता है।

Answer»

HYY Dude

Given :

height h=10m

Initial velocity = V°

let m be the mass of BALL.

Ball is projected downward with velocity V° from height h.

Total energy =mgh +1/2mv°²

Total Energy COLLISION = 50/100x mgh + 1/2 mv°²

the ball rises back to same height after collision hence

V°=√2gh

=√2x9.8x 10

=14 m/s

therefore initial velocity = 14m/s

Hope it's helps you

Plz marked in brainlest answer

Discussion

24.	Two blocks of mass 10kg and 20kg are connected with a light string with the force 50N and 20N . The net acceleration for 10kg mass will be
Answer» EXPLANATION: DROP a LIKE if you LIKED my SOLUTION

24.

Two blocks of mass 10kg and 20kg are connected with a light string with the force 50N and 20N . The net acceleration for 10kg mass will be

Answer»

EXPLANATION:

DROP a LIKE if you LIKED my SOLUTION

Discussion

25.	When two objects are placed side by side touching each other and are at rest . Do they exert normal force on each other ?
Answer» ANSWER: No Explanation: NORMAL reaction is a reaction FORCE caused as a reaction of some other force. As there isn't any force which can CAUSE normal reaction to appear between the blocks so no normal reaction force will appear.

25.

When two objects are placed side by side touching each other and are at rest . Do they exert normal force on each other ?

Answer»

ANSWER:

No

Explanation:

NORMAL reaction is a reaction FORCE caused as a reaction of some other force. As there isn't any force which can CAUSE normal reaction to appear between the blocks so no normal reaction force will appear.

Discussion

26.	Difference between viscous force and normal force
Answer» Here is your ANSWER, Viscous force:- 1) Viscous force is directly proportional to the AREA of layers in contact . 2) It is directly proportional to the relative between the two liquids layers. 3) It is independent of the NORMAL reactions between the two liquid layers. Mark as the Brainliest Answer

26.

Difference between viscous force and normal force

Answer»

Here is your ANSWER, Viscous force:- 1) Viscous force is directly proportional to the AREA of layers in contact . 2) It is directly proportional to the relative between the two liquids layers. 3) It is independent of the NORMAL reactions between the two liquid layers.

Mark as the Brainliest Answer

Discussion

27.	Are all equal vectors are like vectors?
Answer» ANSWER: VECTORS. vectors, vectors............... ______'C

27.

Are all equal vectors are like vectors?

Answer»

ANSWER:

VECTORS. vectors, vectors............... ______'C

Discussion

28.	Que:- which force provides thecentripetal force for thecircular motion of vehiclealong the banked curvedroad?
Answer» Explanation: force of FRICTION Banking of road MEANS raising the outer edge of the road with respect to inner edge so that the road makes an angle with the horizontal. When a VEHICLE MOVES ALONG a curve, the force of friction provides the necessary centripetal force

28.

Que:- which force provides thecentripetal force for thecircular motion of vehiclealong the banked curvedroad?

Answer»

Explanation:

force of FRICTION

Banking of road MEANS raising the outer edge of the road with respect to inner edge so that the road makes an angle with the horizontal. When a VEHICLE MOVES ALONG a curve, the force of friction provides the necessary centripetal force

Discussion

29.	a bulb has a region of focus on a wall with diameter 5m wall is at a distance of 10m from bulb if wall moves away from bulb by 2m find diameter of the new focus
Answer» Answer: 6 METER. Explanation: 2 meters back means 1 MEYER DIAMETER increase. HOPE IT HELPS YOU!!!

29.

a bulb has a region of focus on a wall with diameter 5m wall is at a distance of 10m from bulb if wall moves away from bulb by 2m find diameter of the new focus

Answer»

Answer:

6 METER.

Explanation:

2 meters back means 1 MEYER DIAMETER increase.

HOPE IT HELPS YOU!!!

Discussion

30.	Express each of the following in m s-1, a) 1km h-1
Answer» ANSWER: 5/18 ms-1.....is the answer

30.

Express each of the following in m s-1, a) 1km h-1

Answer»

ANSWER:

5/18 ms-1.....is the answer

Discussion

31.	Derive ionic bond. explain ionic bond
Answer» Answer: Ionic bond, also CALLED ELECTROVALENT bond, type of linkage formed from the ELECTROSTATIC attraction between oppositely charged ions in a chemical compound. ... The atom that loses the electrons BECOMES a positively charged ion (cation), while the one that gains them becomes a NEGATIVELY charged ion (anion).

31.

Derive ionic bond. explain ionic bond

Answer»

Answer:

Ionic bond, also CALLED ELECTROVALENT bond, type of linkage formed from the ELECTROSTATIC attraction between oppositely charged ions in a chemical compound. ... The atom that loses the electrons BECOMES a positively charged ion (cation), while the one that gains them becomes a NEGATIVELY charged ion (anion).

Discussion

32.	A body is projected horizontally from the top of a tower with initial velocity 18 ms-1. It hits the ground at angle 450. What is the vertical component of velocity when strikes the ground
Answer» Answer: 18 MS - 1 hits the ground angle is 450 multiple by 18

32.

A body is projected horizontally from the top of a tower with initial velocity 18 ms-1. It hits the ground at angle 450. What is the vertical component of velocity when strikes the ground

Answer»

Answer:

18 MS - 1 hits the ground angle is 450 multiple by 18

Discussion

33.	Express each of the following in m s-1, 1 km h-1
Answer» ANSWER:ms-1 Meters per second. the SI unit for MEASURING Velocity and speed Kmh-1 kilometers per second Explanation: HOPE it will help

33.

Express each of the following in m s-1, 1 km h-1

Answer»

ANSWER:ms-1 Meters per second. the SI unit for MEASURING Velocity and speed

Kmh-1 kilometers per second

Explanation: HOPE it will help

Discussion

34.	19th question ans plzz
Answer» Answer: EXPLANATION: The CHARGES are separated by a distance d and the MAGNITUDE of electric field is E. The force experienced by the charges is given as –qE and +qE, as can be seen in the figure. As we know that, when a dipole is placed in a uniform electric field, both the charges as a whole do not experience any force, but it experiences a torque equal to τ which can be given as, 1.2 This torque rotates the dipole UNLESS it is placed parallel or anti-parallel to the field. If we apply an external and opposite torque, it neutralizes the effect of this torque given by τext and it rotates the dipole from the ANGLE Ɵ0 to an angle Ɵ1 at an infinitesimal angular speed without any angular acceleration. The amount of work done by the external torque can be given by 1.3 As we know that the work done in bringing a system of charges from infinity to the given configuration is defined as the potential energy of the system, hence the potential energy U(Ɵ) can be associated to the inclination Ɵ of the dipole using the above relation. 1.4 From the above equation, we can see that the potential energy of dipole placed in an external field is zero when the angle Ɵ is equal to 90° or when the dipole makes an angle of 90°. Considering the initial angle to be the angle at which the potential energy is zero, the potential energy of the system can be given as, 1.5

34.

19th question ans plzz

Answer»

Answer:

EXPLANATION:

The CHARGES are separated by a distance d and the MAGNITUDE of electric field is E. The force experienced by the charges is given as –qE and +qE, as can be seen in the figure.

As we know that, when a dipole is placed in a uniform electric field, both the charges as a whole do not experience any force, but it experiences a torque equal to τ which can be given as,

1.2

This torque rotates the dipole UNLESS it is placed parallel or anti-parallel to the field. If we apply an external and opposite torque, it neutralizes the effect of this torque given by τext and it rotates the dipole from the ANGLE Ɵ0 to an angle Ɵ1 at an infinitesimal angular speed without any angular acceleration.

The amount of work done by the external torque can be given by

1.3

As we know that the work done in bringing a system of charges from infinity to the given configuration is defined as the potential energy of the system, hence the potential energy U(Ɵ) can be associated to the inclination Ɵ of the dipole using the above relation.

1.4

From the above equation, we can see that the potential energy of dipole placed in an external field is zero when the angle Ɵ is equal to 90° or when the dipole makes an angle of 90°.

Considering the initial angle to be the angle at which the potential energy is zero, the potential energy of the system can be given as,

1.5

Discussion

35.	an object start moving from rest with intial velocity is 5m/s and its acceleration is 4m/s and its take 5sec find the displacement.??
Answer» ANSWER: MARK me BRAINLIEST and FOLLOW me

35.

an object start moving from rest with intial velocity is 5m/s and its acceleration is 4m/s and its take 5sec find the displacement.??

Answer»

ANSWER:

MARK me BRAINLIEST and FOLLOW me

Discussion

36.	How does eye does change focal length
Answer» ANSWER: It is the ciliary muscles that can MODIFY the curvature of the lens to change its FOCAL length. ... For this, the ciliary muscles relax to decrease the curvature and thereby increase the focal length of the lens. Hence, the lens becomes thin. This ENABLES you to SEE the distant object clearly.

36.

How does eye does change focal length

Answer»

ANSWER:

It is the ciliary muscles that can MODIFY the curvature of the lens to change its FOCAL length. ... For this, the ciliary muscles relax to decrease the curvature and thereby increase the focal length of the lens. Hence, the lens becomes thin. This ENABLES you to SEE the distant object clearly.

Discussion

37.	Please tell me answer of this question .
Answer» ANSWER: L HOPE you UNDERSTOOD.

37.

Please tell me answer of this question .

Answer»

ANSWER:

L HOPE you UNDERSTOOD.

Discussion

38.	What are the real life examples of Henry's Law??Discuss any three....Guys, Please fast..
Answer» EXPLANATION: henry law is SOLUBILITY is protional to pressure used in bravrages cold drink dissolving soda GAS in it natural PHENOMENON of oxygen water

38.

What are the real life examples of Henry's Law??Discuss any three....Guys, Please fast..

Answer»

EXPLANATION:

henry law is SOLUBILITY is protional to pressure

used in

bravrages

cold drink dissolving soda GAS in it

natural PHENOMENON of oxygen water

Discussion

39.	Write the situation where you see disperson light
Answer» Dispersion of Light’ can be DEFINED as the splitting of WHITE light when it passes through a glass prism into its constituent SPECTRUM of colors (i.e. violet, indigo, blue, green, yellow, orange and red). Dispersion figuratively means ‘DISTRIBUTION’ and hence that’s exactly what is happening in the picture above. The white light splits into its constituent colors at various frequencies and various angles.

Discussion

40.	find the angle between mirriors for which angle of deveation is 180 degrees after two reflections
Answer» ANSWER: 90 DEGREES is the answer to your QUESTION

40.

find the angle between mirriors for which angle of deveation is 180 degrees after two reflections

Answer»

ANSWER:

90 DEGREES is the answer to your QUESTION

Discussion

41.	a number of cell when connected in series , form : (1)a generator (2) a inverter (3) a battery (4) a battery eliminator
Answer» ANSWER: The answer to this QUESTION is (3) a battery. I HOPE IT WILL HELP YOU.

41.

a number of cell when connected in series , form : (1)a generator (2) a inverter (3) a battery (4) a battery eliminator

Answer»

ANSWER:

The answer to this QUESTION is (3) a battery.

I HOPE IT WILL HELP YOU.

Discussion

42.	What is the source of charging of a body
Answer» Answer: WATER,PROTEIN,NUTRITION, GREEN VEGETABLES, FRUITS,HEALTHY SHAKES,HEALTHY JUICES,AND PROPER EXERCISE ETC.

42.

What is the source of charging of a body

Answer»

Answer:

WATER,PROTEIN,NUTRITION, GREEN VEGETABLES, FRUITS,HEALTHY SHAKES,HEALTHY JUICES,AND PROPER EXERCISE ETC.

Discussion

43.	Why are the basements of ships are loaded with goods first before allowing passengers to board it?
Answer» Until the early 1950S SOMEONE wishing to ... goods VEHICLES were not passengers but were on board the SHIP in order to PILOT cargo.❤️

Discussion

44.	A straight wire length 35 cm sweeps across a 0.94 T magnetic field with a speed of 2. 00 m/s. What is the maximum value of the electromotive force that can be induced in the wire?
Answer» Given that, Length of a wire, l = 35 cm = 0.35 m Magnetic FIELD, B = 0.94 T Speed, V = 2 m/s To find, The maximum value of the ELECTROMOTIVE force that can be INDUCED in the wire. Solution, The maximum value of the electromotive force that can be induced in the wire is given by : $\epsilon=Blv\\\\\epsilon=0.94\times 0.35\times 2\\\\\epsilon=0.658\ V$ So, the maximum value of the electromotive force that can be induced in the wire is 0.658 V. Learn more, Induced emf brainly.in/question/16896111

44.

A straight wire length 35 cm sweeps across a 0.94 T magnetic field with a speed of 2. 00 m/s. What is the maximum value of the electromotive force that can be induced in the wire?

Answer»

Given that,

Length of a wire, l = 35 cm = 0.35 m

Magnetic FIELD, B = 0.94 T

Speed, V = 2 m/s

To find,

The maximum value of the ELECTROMOTIVE force that can be INDUCED in the wire.

Solution,

The maximum value of the electromotive force that can be induced in the wire is given by :

$\epsilon=Blv\\\\\epsilon=0.94\times 0.35\times 2\\\\\epsilon=0.658\ V$

So, the maximum value of the electromotive force that can be induced in the wire is 0.658 V.

Learn more,

Induced emf

brainly.in/question/16896111

Discussion

45.	Calculate the force of attraction between two balls m1 and M2 are 1kg then their centers are 10cm apart.given G=6.67×10-¹¹ Nm² kg-²
Answer» $\blue{\bold{\underline{\underline{Answer:}}}}$ $\green{\tt{\therefore{F=6.67\times 10^{-9}\:N}}}$ $\orange{\bold{\underline{\underline{Step-by-step\:explanation:}}}}$ $\green{\underline \bold{<klux>GIVEN</klux> :}} \\ \tt: \implies Mass \: of \: ball( M_{1}) = 1 \: kg \\ \\ \tt: \implies Mass \: of \: ball( M_{2}) = 1 \: kg \\ \\ \tt: \implies Distance \: between \: radius \: of \: balls (R)= 10 \: cm \\ \\ \tt: \implies Value \: of \: G = 6.67 \times {10}^{ - 11} N {m}^{2} {kg}^{ - 2} \\ \\ \red{\underline \bold{To \: Find :}} \\ \tt: \implies Force \: of \: attraction(F)= ?$ • ACCORDING to given QUESTION : $\bold{As \: we \: know \: that} \\ \tt: \implies F= \frac{G M_{1} M_{2} }{ {R}^{2} } \\ \\ \tt: \implies F= \frac{6.67 \times {10}^{ - 11} \times 1 \times 1 \times }{(0.1)^{2} } \times \frac{N \times {m}^{2} \times {kg}^{ - 2} \times kg \times kg }{ {m}^{2} } \\ \\ \tt: \implies F = \frac{6.67 \times {10}^{ - 11} }{0.01} \times N \times {kg}^{ - 2} \times {kg}^{2} \\ \\ \tt: \implies F= \frac{6.67 \times {10}^{ - 11} }{1^{ - 2} } \times N \\ \\ \tt: \implies F= 6.67 \times {10}^{ - 11 + 2} \: N \\ \\ \green{\tt: \implies F= 6.67 \times 10^{ - 9} \: N} \\ \\ \green{\tt \therefore Attraction \: force \: between \: two \: balls} \\ \: \: \: \: \green{\tt is \: 6.67 \times {10}^{ - 9} \: N}$

45.

Calculate the force of attraction between two balls m1 and M2 are 1kg then their centers are 10cm apart.given G=6.67×10-¹¹ Nm² kg-²

Answer»

$\blue{\bold{\underline{\underline{Answer:}}}}$

$\green{\tt{\therefore{F=6.67\times 10^{-9}\:N}}}$

$\orange{\bold{\underline{\underline{Step-by-step\:explanation:}}}}$

$\green{\underline \bold{<klux>GIVEN</klux> :}} \\ \tt: \implies Mass \: of \: ball( M_{1}) = 1 \: kg \\ \\ \tt: \implies Mass \: of \: ball( M_{2}) = 1 \: kg \\ \\ \tt: \implies Distance \: between \: radius \: of \: balls (R)= 10 \: cm \\ \\ \tt: \implies Value \: of \: G = 6.67 \times {10}^{ - 11} N {m}^{2} {kg}^{ - 2} \\ \\ \red{\underline \bold{To \: Find :}} \\ \tt: \implies Force \: of \: attraction(F)= ?$

• ACCORDING to given QUESTION :

$\bold{As \: we \: know \: that} \\ \tt: \implies F= \frac{G M_{1} M_{2} }{ {R}^{2} } \\ \\ \tt: \implies F= \frac{6.67 \times {10}^{ - 11} \times 1 \times 1 \times }{(0.1)^{2} } \times \frac{N \times {m}^{2} \times {kg}^{ - 2} \times kg \times kg }{ {m}^{2} } \\ \\ \tt: \implies F = \frac{6.67 \times {10}^{ - 11} }{0.01} \times N \times {kg}^{ - 2} \times {kg}^{2} \\ \\ \tt: \implies F= \frac{6.67 \times {10}^{ - 11} }{1^{ - 2} } \times N \\ \\ \tt: \implies F= 6.67 \times {10}^{ - 11 + 2} \: N \\ \\ \green{\tt: \implies F= 6.67 \times 10^{ - 9} \: N} \\ \\ \green{\tt \therefore Attraction \: force \: between \: two \: balls} \\ \: \: \: \: \green{\tt is \: 6.67 \times {10}^{ - 9} \: N}$

Discussion

46.	A p.d of 6V is applied to two resistors of 3Ω and 6Ω connected in parallel . Calculate (i) equivalent resistance (ii) total current (ii) The current flowing in the 3Ω resistor .
Answer» Solution : ⏭ Given: ✏ Two resistors of resistance 3Ω and 6Ω are CONNECTED in parallel with p.d. 6V ⏭ To Find: Equivalent resistance Total current flow in circuit Current flow in 3Ω resistor ⏭ Formula: ✏ FORMULA of eq. resistance in parallel connection is given by... $\bigstar \: \boxed{ \tt{ \large{ \pink{R_{eq} = \dfrac{R_1 \times R_2}{R_1 + R_2}}}}} \: \bigstar$ ✏ As per ohm's law, RELATION between potential difference, resistance and current is given by... $\bigstar \: \boxed{ \tt{ \large{ \purple{V = I \times R}}}} \: \bigstar$ ⏭ Calculation: _________________________________ Equivalent resistance $\dashrightarrow \sf \: R_{eq} = \dfrac{3 \times 6}{3 + 6} \\ \\ \dashrightarrow \sf \: R_{eq} = \dfrac{18}{9} \\ \\ \dashrightarrow \: \boxed{ \tt{ \red{\large{R_{eq} = 2 \: \Omega}}}} \: \orange{ \bigstar}$ _________________________________ Total current flow $\implies \sf \: V = I_{net} \times R_{eq} \\ \\ \implies \sf \: 6 = I_{net} \times 2 \\ \\ \implies \sf \: I_{net} = \dfrac{6}{2} \\ \\ \implies \: \boxed{ \tt{\large{ \green{I_{net} = 3 \: A}}}} \: \orange{ \bigstar}$ _________________________________ Current flow in 3Ω resistor $\rightarrowtail \sf \: V = I \times R \\ \\ \rightarrowtail \sf \: 6 = I \times 3 \\ \\ \rightarrowtail \sf \: I = \dfrac{6}{3} \\ \\ \rightarrowtail \: \boxed{ \tt{ \large{\blue{I = 2 \: A}}}} \: \orange{ \bigstar}$ _________________________________ ⏭ Additional information: Ohm's law is not APPLICABLE for semi-conductor devices. Potential difference REMAINS same across all resistors in parallel connection. Current is fundamental quantity.

46.

A p.d of 6V is applied to two resistors of 3Ω and 6Ω connected in parallel . Calculate (i) equivalent resistance (ii) total current (ii) The current flowing in the 3Ω resistor .

Answer»

Solution :

⏭ Given:

✏ Two resistors of resistance 3Ω and 6Ω are CONNECTED in parallel with p.d. 6V

⏭ To Find:

Equivalent resistance
Total current flow in circuit
Current flow in 3Ω resistor

⏭ Formula:

✏ FORMULA of eq. resistance in parallel connection is given by...

$\bigstar \: \boxed{ \tt{ \large{ \pink{R_{eq} = \dfrac{R_1 \times R_2}{R_1 + R_2}}}}} \: \bigstar$

✏ As per ohm's law, RELATION between potential difference, resistance and current is given by...

$\bigstar \: \boxed{ \tt{ \large{ \purple{V = I \times R}}}} \: \bigstar$

⏭ Calculation:

_________________________________

Equivalent resistance

$\dashrightarrow \sf \: R_{eq} = \dfrac{3 \times 6}{3 + 6} \\ \\ \dashrightarrow \sf \: R_{eq} = \dfrac{18}{9} \\ \\ \dashrightarrow \: \boxed{ \tt{ \red{\large{R_{eq} = 2 \: \Omega}}}} \: \orange{ \bigstar}$

_________________________________

Total current flow

$\implies \sf \: V = I_{net} \times R_{eq} \\ \\ \implies \sf \: 6 = I_{net} \times 2 \\ \\ \implies \sf \: I_{net} = \dfrac{6}{2} \\ \\ \implies \: \boxed{ \tt{\large{ \green{I_{net} = 3 \: A}}}} \: \orange{ \bigstar}$

_________________________________

Current flow in 3Ω resistor

$\rightarrowtail \sf \: V = I \times R \\ \\ \rightarrowtail \sf \: 6 = I \times 3 \\ \\ \rightarrowtail \sf \: I = \dfrac{6}{3} \\ \\ \rightarrowtail \: \boxed{ \tt{ \large{\blue{I = 2 \: A}}}} \: \orange{ \bigstar}$

_________________________________

⏭ Additional information:

Ohm's law is not APPLICABLE for semi-conductor devices.
Potential difference REMAINS same across all resistors in parallel connection.
Current is fundamental quantity.

Discussion

47.	A electric heater draw a current of 5A when connected to 220V mains. Calculate the resistance of its filament.
Answer» Explanation: ypu have studied ohms law so by ohms law V = I X R here we have to calculater resistance then R = V / I R = 220V / 5A R = 44 ohm. you have got the ans thnkss and pls MARK it as brainellist...

47.

A electric heater draw a current of 5A when connected to 220V mains. Calculate the resistance of its filament.

Answer»

Explanation:

ypu have studied ohms law

so by ohms law

V = I X R

here we have to calculater resistance then

R = V / I

R = 220V / 5A

R = 44 ohm.

you have got the ans thnkss and pls MARK it as brainellist...

Discussion

48.	Types of force based on their direction
Answer» Explanation: MUSCULAR FORCES. Applied FORCE. ... Tension Force. ... SPRING Force. ... GRAVITATIONAL Force.

48.

Types of force based on their direction

Answer»

Explanation:

MUSCULAR FORCES.

Applied FORCE. ...

Tension Force. ...

SPRING Force. ...

GRAVITATIONAL Force.

Discussion

49.	How to measure Bond length
Answer» REFER to the above ATTACHMENT for your anwer *HOPE IT HELPS*...

49.

How to measure Bond length

Answer»

REFER to the above ATTACHMENT for your anwer

HOPE IT HELPS...

Discussion

50.	05 An elephant has weight of 50000 N and its feet cover a total area of 1 meter square. Woman weighs600 N and her pencil heel sandal make a contact area of 0.0015 metre square Who exerts morepressure on the ground? need with explanation
Answer» Woman with pencil HEEL Pressure=Force/area elephant's CENTRE of MASS is divided into four as the total force acts at the centre the force acting on lanf by it's foot=50000/4=12500N pressure=12500/1=12500N/m^2 woman has it's centre if mass DIRECTLY above point of contact of heel with ground thus force EXERTED by woman=600N pressure=600/0.0015=400000N/m^2

50.

05 An elephant has weight of 50000 N and its feet cover a total area of 1 meter square. Woman weighs600 N and her pencil heel sandal make a contact area of 0.0015 metre square Who exerts morepressure on the ground? need with explanation

Answer»

Woman with pencil HEEL

Pressure=Force/area

elephant's CENTRE of MASS is divided into four as the total force acts at the centre

the force acting on lanf by it's foot=50000/4=12500N

pressure=12500/1=12500N/m^2

woman has it's centre if mass DIRECTLY above point of contact of heel with ground

thus force EXERTED by woman=600N

pressure=600/0.0015=400000N/m^2

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

When does the average velocity of a body becomes zero​

Calculate the charge of an Alpha particle​

3.)aThe average kinetic energy of molecules as substance is a measure of it's heat/ temperature. Choose the correct alternative​

Please explain me the answer of the question provided to you in the attachment.It would help alot.I really can't understand this thing. please explain in simple words PLEASEEEEE...i beg u!

Express each of the following in m s-1, 1km h-1​

Coulumb,s Law.................??​

F=Kq1q2/r²

Does the moment of inertia of l0kg mass remain constant ? Explain​

What is the principal of electric sceen

The distance -time graph for determination--------of an object

Why does butter get separated from milk and collect at the top when whirled in a mixer?​

Express each of the following in m s-1, 18km min-1​

1) What is the si unitfor specific latent heat of melting​

How much momentum will a dub bell of mass 10 kg transfer to the floor if it falls from a height of 80cm? Take its downward accerlation to be 10 metre per second.​

Which wavelength can be most useful for imaging from a satellite in cloud-covered conditions? A. 0.4 µm B. 0.4 nm C. 1.4 µm D. 4 cm E. 4 nm

Use Gauss theorem to derive expression for electric field E at a distance r – i) from a uniformly charged hollow metallic sphere of radius R when r Rii) in the region between two charged sheets with charge density s & -s and s & s.

When a projectile covers same horizontal distance and the initial angles of projection are

If a net charge Q, flows across any cross-section of a conductor in time t, then the current I, through the cross-section is(1) I = /(2) I = Q × t(3) I = Q × t2(4) None

A boy of mass 45kg stands on

All vectors are_______ vectors 1) unlike 2) null 3) like 4) unit ​

Quantisation of electric charge means?

Two blocks of mass 10kg and 20kg are connected with a light string with the force 50N and 20N . The net acceleration for 10kg mass will be

When two objects are placed side by side touching each other and are at rest . Do they exert normal force on each other ?

Difference between viscous force and normal force

Are all equal vectors are like vectors?​

Que:- which force provides thecentripetal force for thecircular motion of vehiclealong the banked curvedroad?​

a bulb has a region of focus on a wall with diameter 5m wall is at a distance of 10m from bulb if wall moves away from bulb by 2m find diameter of the new focus​

Express each of the following in m s-1, a) 1km h-1​

5/18 ms-1.....is the answer

Derive ionic bond. explain ionic bond​

A body is projected horizontally from the top of a tower with initial velocity 18 ms-1. It hits the ground at angle 450. What is the vertical component of velocity when strikes the ground

Express each of the following in m s-1, 1 km h-1​

19th question ans plzz​

an object start moving from rest with intial velocity is 5m/s and its acceleration is 4m/s and its take 5sec find the displacement.??​

How does eye does change focal length​

Please tell me answer of this question .​

What are the real life examples of Henry's Law??Discuss any three....Guys, Please fast..​

Write the situation where you see disperson light​

find the angle between mirriors for which angle of deveation is 180 degrees after two reflections ​

a number of cell when connected in series , form : (1)a generator (2) a inverter (3) a battery (4) a battery eliminator​

What is the source of charging of a body

Why are the basements of ships are loaded with goods first before allowing passengers to board it?

A straight wire length 35 cm sweeps across a 0.94 T magnetic field with a speed of 2. 00 m/s. What is the maximum value of the electromotive force that can be induced in the wire?

Calculate the force of attraction between two balls m1 and M2 are 1kg then their centers are 10cm apart.given G=6.67×10-¹¹ Nm² kg-²

• ACCORDING to given QUESTION :

A p.d of 6V is applied to two resistors of 3Ω and 6Ω connected in parallel . Calculate (i) equivalent resistance (ii) total current (ii) The current flowing in the 3Ω resistor .

Solution :

A electric heater draw a current of 5A when connected to 220V mains. Calculate the resistance of its filament.

Types of force based on their direction

How to measure Bond length​

05 An elephant has weight of 50000 N and its feet cover a total area of 1 meter square. Woman weighs600 N and her pencil heel sandal make a contact area of 0.0015 metre square Who exerts morepressure on the ground? need with explanation​

When does the average velocity of a body becomes zero

Calculate the charge of an Alpha particle

3.)aThe average kinetic energy of molecules as substance is a measure of it's heat/ temperature. Choose the correct alternative

Express each of the following in m s-1, 1km h-1

Coulumb,s Law.................??

Does the moment of inertia of l0kg mass remain constant ? Explain

Why does butter get separated from milk and collect at the top when whirled in a mixer?

Express each of the following in m s-1, 18km min-1

1) What is the si unitfor specific latent heat of melting

How much momentum will a dub bell of mass 10 kg transfer to the floor if it falls from a height of 80cm? Take its downward accerlation to be 10 metre per second.

All vectors are_______ vectors 1) unlike 2) null 3) like 4) unit

Are all equal vectors are like vectors?

Que:- which force provides thecentripetal force for thecircular motion of vehiclealong the banked curvedroad?

a bulb has a region of focus on a wall with diameter 5m wall is at a distance of 10m from bulb if wall moves away from bulb by 2m find diameter of the new focus

Express each of the following in m s-1, a) 1km h-1

Derive ionic bond. explain ionic bond

Express each of the following in m s-1, 1 km h-1

19th question ans plzz

an object start moving from rest with intial velocity is 5m/s and its acceleration is 4m/s and its take 5sec find the displacement.??

How does eye does change focal length

Please tell me answer of this question .

What are the real life examples of Henry's Law??Discuss any three....Guys, Please fast..

Write the situation where you see disperson light

find the angle between mirriors for which angle of deveation is 180 degrees after two reflections

a number of cell when connected in series , form : (1)a generator (2) a inverter (3) a battery (4) a battery eliminator

How to measure Bond length

05 An elephant has weight of 50000 N and its feet cover a total area of 1 meter square. Woman weighs600 N and her pencil heel sandal make a contact area of 0.0015 metre square Who exerts morepressure on the ground? need with explanation