Explore topic-wise InterviewSolutions in Current Affairs.

ANSWER:OK

Explanation:

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Answer:

1 ASU =

parsec

and

Answer:

A and B are terminals having HALF wire of parallel connection

hope it helps you

Here 1:1 is ratio of capacitance so ! the POTENTIAL difference BECOMES half that is 2 VOLT

EXPLANATION:

SEE the ATTACHMENT FOLLOW me

ANSWER:

VELOCITY = 4/25

=0.24

hope it HELPS.......

Answer:

To,

the principal

D.A.V PUBLIC SCHOOL

Date: 21. 4.20

subject : prepation of exam

Dear ma'am,

hope you will FINE. I am also fine here.

______________________________________

CONTAINS

____________________________________________________________________________

your obediently

srishti

ANSWER:

Yes

Explanation:

Yse

Answer:

Heat measures both kinetic and potential ENERGY contained by molecules in an object. On the other HAND, temperature measures AVERAGE kinetic energy of molecules in substance. ... On the other hand, temperature can be measured by thermometer. Heat is REPRESENTED by 'Q' whereas 'T' is used to represent temperature.

HELLO,

Here we go,

LIGHT is combination of seven colours known as VIBGYOR that is violet , Indigo , blue , green , yellow , orange and red.

Light behave like a wave as well as particle.

it is said that light travels in a STRAIGHT LINE and follow the rectilinear propagation.

but sometime light also band and this phenomena is known as diffraction light when only e when a body becomes so small that the light has a tendency to bend around it.

I hope my answer will help you.

Answer:

This statement refers to the Stefan-Boltzmann Law, which says that the total energy radiated from a blackbody is proportional to the FOURTH power of its temperature. ... This is KNOWN as WIEN's Law, which is the relationship between the wavelength of maximum INTENSITY a blackbody EMITS (lambda max) and its temperature.

Answer:

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Explanation:

Given,

Mass of body = 10 kgs

u = 100 m/s

v = 0 m/s (since we have to stop it)

time = 10 s

We KNOW, a = (v-u)/t = -100/10 = -10 m/(s^2)

We ALSO know,

F = ma

==> 10*-10

= -100 N

Therefore, force required will be -100 N (100 N in opposite direction)

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ANSWER:

OPTION B

Explanation:

check ATTACHMENT for solution

let D=30°

given A=60°

EXPLANATION:

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oxygen-O2

Nitrogen-N2

chlorine-Cl2

white phosphorus-P4

iodine-I2

fluorine-F2

Answer:50 metres

Explanation:The CAR travels 10 m in 1 second . So in 5 SECONDS it will travel. (10×5) m =50 m

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Explanation:

An electric field stronger than 3.0 x 106 V/m will cause SPARKS to occur in air. What is the maximum potential DIFFERENCE that can be applied across two metal plates 1.0 mm apart before sparking begins ?

V = Eh = 3.0 x 106 x 1.0 x 10-3 = 3000 Volts

A cloud is at a potential of 8.0 x 106 V relative to the ground. A charge of 40 C is transferred in a lightning stroke between the cloud and the ground. FIND the energy dissipated.

Energy dissipated = QV = 40 x 8.0 x 106 = 3.2 x 108 J

In charging a 20 kg storage battery, a total of 2.0 x 105 C is transferred from one set of electrodes to another. The potential difference between the electrodes is 14 V.

(a) How much energy is stored in the battery ?

Electrical PE = QV = 2.0 x 105 x 14 = 2.8 x 106 J

(b) If this energy were used to raise the battery above the ground, how high would it go ?

mgh = PE electrical

h = PE/mg

h = 2.8 x 106/ (20 x 9.8) = 1.43 x 104 m = 14.3 km

(c) If this energy were used to provide the battery with kinetic energy, what would its speed be ?

KE = PE electrical

½mv2 = 2.8 x 106

v2 = (2.8 x 106 x 2)/m = (2.8 x 106 x 2)/20

v = 530 m/s

A potential difference of 20 kV is used to accelerate electrons in a television picture TUBE.

(a) How much kinetic energy do the electrons acquire ?

Electrical PE lost = KE gained

QV = KE = ½mv2

KE = 1.6 x 10-19 x 20000

KE = 3.2 x 10-15 J

(b) What is their speed ?

KE = ½mv2

v2 = 2(KE)/m = (2 x 3.2 x 10-15 )/9.1 x 10-31

v = 0.84 x 108 m/s

Answer:

Stefan's Law. This law STATES that the total heat energy emitted by a perfect black body per second per UNIT AREA is directly proportional to the fourth POWER of the ABSOLUTE temperature of its surface.

hope this help you

EXPLANATION:

The example could be VELOCITY which was time/length = m/s The base units in the SI are meter, kilogram, second, KELVIN (DEGREE of temperature), ampere (electric current), mole (quantity of substance) and candela (luminosity). ... If it's not a base unit, it's a derived unit

Answer:

1. between P and F or between C and F .

2. concave mirror

3. convex mirror

4. MAYBE principle focus

5.concave mirror

6. rear VIEW mirror

7. v

8. u

9 and 10 ???

Explanation:

I am not sure about all the answers. But this is what my guess is.

Answer:

If it can travel 45 km in 1 HOUR, it will travel 1.1 km in 1 min and 28 seconds. Speed of TRAIN = 45 km/h or 45000 metres ÷ 3600 seconds = 12.5 metres per SECOND. Bridge is 1 km long plus 100 metres for length of train = 1.1 km or in metres 1100 ÷ 12.5 metres per seconds Therefore Time = 88 seconds.

Explanation:

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ANSWER:

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Answer:

The FIVE examples of rotary motion are electric fan, earths rotation, spinning KNOB, turbine and BICYCLE wheels. Explanation: The rotatory motion is a form of motion where the subject moves in a circular path with rotation around an axis which is an imaginary axis. The imaginary is better called as axis of rotation

EXPLANATION:

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ANSWER:

yes it has to be definitely charged

Explanation:

bcoz if charge is ZERO then AUTOMATICALLY current BECOMES zero

SoluTion:

Power = Rate of consumption of ENERGY.

P =

Where, E is energy and t is time.

Energy can be changed into useful work, so we can WRITE above expression as :

P =

We know that, W = V.Q [ where V is POTENTIAL difference and Q is charge ]

P =

Also, = I [ CURRENT ]

• Power is rate of doing work.
• Power can also be said as rate of consumption of energy.
• It's S.I unit is watt.

Answer:

.

We have,

f

1

=20N,f

2

=10N

m

1

=2kg,m

2

=4KG

Let tension between the blocks is T

Here, F

1

>F

2

So, the net force acts in the right direction.

for BLOCK of mass 2 kg,

T−F

2

=2a

T−10=2a.........(1)

For the block of mass 4kg,

F

1

−T=4a

20−T=4a.......(2)

BY SOLVING the above two equation the we get,

10=6a

⇒a=

3

5

m/s

2

THUS,

From equation (1) we get,

T=10+

3

10

=

3

40

N

Hello ,

Here we go,

The answer for question number 1 is as follow,

ammeter is a device which is used to measure electric current flowing through a wire. Ammeter is connected in series.

_________________________

Answer for question number 2 is as FOLLOWS,

The rate of flow of charge is known as electric current.

when one coulomb of charge is flowing for 1 SECOND in an electric wire then one ampere of current is flowing through it.

The SI unit of current is ampere or A.

I = c/t

Here I is equal to current C is equal to 1 coulomb or charge and t is equal to time.

___________________________

Answer for question number 3 is as follow,

Ammeter as well as galvanometer is used to measure electric current.

___________________________

Answer for question number 4 is as follows,

SI unit of current is ampere or A.

__________________________

Answer for Question number 5 is as follows,

when one coulomb of charge is flowing through a wire for one second then it is said that one ampere of current is flowing through it.

__________________________

Answer for question number 6 is as follows,

the function of switch is too close your complete a circuit so that electric current can flow through it as well as it is also used to disconnect the circuit so that current doesn't flow through it.

___________________________

Answer for Question number 7 is a follow,

The rate of flow of electric charge is known as electric current.

__________________________

Answer for question number 8 is as follows,

the path through which electric current flow is said to be known as electric circuit.

____________________________

Answer for question number 9 is given in the attachment.

____________________________

Answer for question number 10 is as follows,

Current.

___________________________

Answer for question number 11 is as follows,

electric charge flows through an electric circuit when it is completed that is switch is on.

___________________________

Answer for question number 12 is follow,

10 power -3 ampere .

____________________________

Answer for question number 13 is as follow,

10 power -6

___________________________

Answer for question number 14 is as follows,

0.5 A

__________________________

Answer for question number 15 is as follows,

20 A.

I hope my answer will help you.

Answer:

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Answer:

10×5

Explanation:

50m

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ANSWER:

HOPE it HELPS you ! THANKS by the WAY

ANSWER:

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ANSWERS MARK as brilent

Explanation:

Answer:

the shear stress between adjacent FLUID layers is proportional to the velocity gradients between the two layers. The ratio of shear stress to shear rate is a constant, for a given TEMPERATURE and pressure, and is DEFINED as the viscosity or coefficient of viscosity.

hope this HELP you

ANSWER : option (1) the displacement is zero and (4) the average velocity is zero.

Q -> Consider the motion of the tip of second hand of a wall clock having a LENGTH R in one HOUR it's...

1. the displacement is zero
2. the DISTANCE covered is zero
3. the average speed is zero
4. the average velocity is zero

Here, total displacement covered by tip of second hand , s = 0 [ because INITIAL position of tip of second hand is also final position of it. ]

therefore, option (1) is correct choice.

distance covered, S = 3600 × 2πR

= 7200πR ≠ 0

average speed = total distance/time taken

= 7200πR/3600 = 2πR ≠ 0

average velocity = net displacement/time

= 0/1hr

= 0

therefore, option (4) is correct choice.

Answer:

Constant velocity is the Velocity in which an OBJECT travels distances in equal AMOUNTS of time. Or travelling with the same SPEED THROUGHT the journey . Uniform velocity is the velocity of a object which covers equal distances in uniform amount of time

ANSWER:

false because ZINC acts as a negative electrode in an electric cell.

I hope it will help you.

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Answer:

20°C + 273 K = 293 K

Answer:

BHAI average ACCELERATION ho ya acceleration DONO ka dimension FORMULA same HOTE hai

Answer:

The stability and electronic STRUCTURE of (protonated) polyaniline (PANI) and ... reversible doping processes (protonation MECHANISM of imine nitrogen atoms) [23]. ... As the SUPPORT material, the nitrogen sheets would provide high surface area

i HOPE this answer is correct

ANSWER:

because it's a CONCAVE MIRROR

Answer:

Hey mate here is your answer.....

It HELPS to know the SPEED at DIFFERENT distances.

Hope it helps you....

Answer:

15 is the POTENTIAL ENERGY

Answer:

A body covers 20m in 2 sec and 80 m in 4 seconds from the start along a straight LINE. If it is moving with constant acceleration, how much distance will it cover

Let the initial VELOCITY of the body be u m/s; and the constsnt acceleration be a m/s². Then displacemet (distance COVERED) of the body after t second is given by

s = u t + ½ a t² ———————————-(1)

The body covers 20 m in 2s and 80 m in 4 s.

20 = u×2 + ½ a 2²; => 20 = 2 u + 2 a

u + a = 10 —————————————(2)

80 = u×4 + ½ a 4²; => 80 = 4 u + 8 a; this gives,

u + 2 a = 20 ——————————————(3)

Solving (2) and (3) for u and a we get

u = 0 m/s and a = 10 m/s² ————————(4)

To obtain the distance covered in the next 4s we NEED to find the velocity at the beginning of this interval using,

v = u + a t => v = 0 m/s +

Answer:

Originally Answered: If RADIUS of a wire is DOUBLED then what happens to its resistance?

So by doubling the radius of wire , the resistance of the wire will become 1/4 time the PREVIOUS resistance.

Answer:

MERE KO nahi PATA BHAI ya bahan me nahi janta

Answer:

plz see the attachment

Explanation:

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plz

ANSWER:

BUOYANT force

Explanation:

ANSWER:

ok

Explanation:

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