Explore topic-wise InterviewSolutions in Current Affairs.

ANSWER:

EXPLANATION:

...................

Explanation:

ULTRASOUND is USED for ECG...!

It is also used to listen heartbeats of baby in stomach...!

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Answer:

As I know a battery is an EXAMPLE of a CLOSED circuit where it can then produce electricity , electrons will FLOW from negative pole to positive.

SolutioN :

CONSIDER a thin infinitely long STRAIGHT wire having uniform line charge having Density as λ. The direction of electric field is radially outwards. We choose a Cylindrical Gussain SURFACE to determine electric field at a DISTANCE r from line charge.

ANSWER:

If it is in a SERIES CONNECTION, the answer would be

6+2+5 = 13 ohms

if it is in PARALLEL connection, the answer would be

1/6+1/2+1/5 =13/15

15/13 = 1.153 ohms

Explanation:

ANSWER:

(V1 + V2) /2

Explanation:

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ANSWER:

t of 1+1/roots is the answer

ANSWER:

s=100/900=1/9m/s

in KMPH =1/9×18/5

=2/5 kmph

Answer:

1 Goalkeeper

2 Defender

3 CENTRE-back

4 Sweeper

5 Full-back

6 Wing-back

7 Midfielder

8 Centre midfield

9 DEFENSIVE midfield

10 ATTACKING midfield

11 WIDE midfield

Explanation:

Given that,

A parallel plate capacitor is charged by a battery.

The battery is disconnected and a dielectric slab with its thickness equal to the plate SEPARATION is inserted between the plates.

(i). We NEED to calculate the charge

The battery is disconnected so the charge on capacitor remains constant.

(ii). We need to calculate the capacitance of the capacitor

The capacitance WITHOUT dielectric is

When dielectric slab is inserted, then the capacitance

Where, k = constant 

(iii) We need to calculate the ELECTRIC FIELD intensity between the plates

Using formula of electric field

Where, V = potential difference and

d = separation between the plates.

Potential difference decreases and d remains the same and electric field also decreases.

(iv). We need to calculate the potential difference

Using formula of potential difference

As C increases and Q remains the same since the battery is disconnected, the potential difference between the plates decreases.

(v) We need to calculate the electric field intensity between the plates

Using formula of store energy

As Q is constant

So, Capacitance will be increases then stored energy will be decreases.

Hence, This is the required answer.

Answer:

tyyddjgpu and other scientists have been working to determine how MUCH the cost 6AM COULD 666777

ANSWER:

please TELL PROPER and full QUESTION for a answer

incomplete question is not required

Explanation:

this is incomplete question

answer : (i) 2.6 × 10^5 N/C (ii) 1.3 × 10^5 N/C

It has given that two charges +10μC and -10μC are seperated 5MM apart.

so, dipole, P = qd

= 10μC × 5mm

= 10 × 10^-6 C × 5 × 10^-3 m

= 5 × 10^-8 Cm

(i) electric field at a point on axial line, E = 2KP/r³

= (2 × 9 × 10^9 × 5 × 10^-8)/(15 × 10^-2)³ [ here, r = 5cm ]

= (90 × 10)/(3375 × 10^-6)

= 0.266 × 10^6 = 2.66 × 10^5 N/C

(ii) electric field at a point on equatorial line, E = KP/r³

= (9 × 10^9 × 5 × 10^-8)/(5 × 10^-2)³

= (45 × 10)/(3375 × 10^-6)

= 0.133 × 10^6 = 1.33 × 10^5 N/C

JOULE unit for MEASURE energy.

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ANSWER:

i THINK this will HELP you

the answer is in the PIC and 2MIN 20SEC = 140 SEC

ANSWER: your answer is (a) 0.27777......m/s (B) 300 m/s

Explanation:

(a) 1km/hr = 1 × 5/18 = 5/18 m/s  [5/18 because its a trick to convert km/hr to m/s]

(b) 18km/min= 18000/60 = 300 m/s

please MARK the brainliest : )

ANSWER:

whttttttt???????????

EXPLANATION:

HEIGHT from which the ball is released from rest is H

height upto which it MOVES vertically downward is (H-h)

LET the time upto which,the ball fall vertically diwnward be t1 and time in which it covers parbolic path be t2

using first equation of motion

t1={2(H-h)/G}^1/2

similarlly

t2=(2h/g)^1/2

T={2(H-h)/g}^1/2+{2h/g}^1/2. (adding both,to get the total time to REACH the ground)

now,for maximum time,to reach the ground

dT/dH=0

On differenting it we get

h/H=1/2

ANSWER:

here is your answer buddy

EXPLANATION:

....in a short I pointed with RED pen

ANSWER:

here is your answer

EXPLANATION:

......

Answer:

MATTER is MADE up of small particles which cannot be seen by NAKED eyes

EXPLANATION:

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ANSWER:

FOLLOW back KRDO YAARR pls

Answer:

R = 2.4 m ; H = 1.6 m ; T = 0.8 s ; @ ~ 53°

Explanation:

|u| = √[3^2 + 4^2]

|u| = 5m/s

@ = tan^-1 (4/3)

sin @ = 4/5

cos @ = 3/5

sin [email PROTECTED] = 2 [email protected] [email protected] = 24/25

(i) R = u^2 sin [email protected] / G

R = 5×5× 24/25 / 10

R = 2.4 m

(ii) H = u^2 sin^2 (@)/g

H = 5× 5× 4/5 ×4/5 /10

H = 1.6 m

(iii) T = 2u [email protected]/g

T = 2× ×5×4/5/100

T = 0.8 s

(iv) @ = = tan^-1 (4/3)

@ ~ 53°

ANSWER:

The answer to this QUESTION is Height reached

= h = ut/2 + 1/2*-9.8*t²/4

where u = initial VELOCITY of the stone.

I HOPE IT WILL HELP YOU.

FIRST LAW :

➡Newton's First Law states that an object will remain at REST or in uniform motion in a straight line unless acted UPON by an external force. It may be seen as a statement about inertia, that objects will remain in their state of motion unless a force ACTS to change the motion.

SECOND LAW :

➡The second law states that the ACCELERATION of an object is dependent upon two VARIABLES - the net force acting upon the object and the mass of the object.

THIRD LAW :

➡For every action, there is an equal and opposite reaction. The statement means that in every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object.

______________________________

Answer:

"The EARTH's gravity field changes from one month to the next mostly due to the mass of water moving AROUND on the surface," said Watkins. "Because water in all its forms has mass and weight, we can actually weigh the ocean moving around. We can weigh RAINFALL, and we can weigh changes in the polar ice CAPS."

Explanation:

Answer:

It proposes that in Earth's prebiotic HISTORY, simple organic matter was exposed to ENERGY in the form of volcanoes and electrical storms. That energy would have catalyzed CHEMICAL reactions that, in the span of a few HUNDRED million years, COULD have produced self-replicating molecules.

ANSWER:

candela

Explanation:

LUMINOUS INTENSITY......

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ANSWER:

A. is concave in nature

FOCAL LENGTH is - 0.2 m

B.is convex in nature

focal length 0.25 m

Answer:

The leveling with the help of a WOODEN plank is important because it will keep it stable and not fall over and you can GET the exact measuerment you need. (if your MEASURING)

ANSWER:

fldmsmfer¡!!!!!!!!!!!!!!

EXPLANATION:

PLEASE MARK it BRAINLIEST

Answer:

SPEED of loght in one SECOND = 300000 km/s

distance = speed X time

distance = 300000 x 8

= 2400000km

pls amrk as BRANLIEST

Answer:

1-

Suppose the total distance is 'S'.

According to question,

Body covers first half of its total distance with SPEED V1 .Let the time be t1.

Using ,Speed=Distance /Time

V1=(S/2)/t1=S/2t1

t1=S/ 2 V1

and remaining distance with speed V2. let the time be t2.

V2=(S/2) /t2=S/ 2t2

t2=S/2 V2

Now the AVERAGE speed is GIVEN by the relation,

Average speed=Total distance covered / Total time taken

=S /(t1 + t2)

=S/ (S/ 2 V1 +S/2 V2)

=2V1V2 /(V1+V2)

Due to paucity of time it would not be possible for us to provide the answers to all your queries.Try solving rest of the questions yourself and if you face any difficulty then do get back to us.

ANSWER:

between FOCUS and POLE

Answer:

speed of sound in CO2= 276.89 m/s

Explanation:

Formula for velocity of sound in any gas medium =ôRT/M

where gamma(¥) is ratio of specific heat (Cp/Cv)

R is universal gas constant

T is absolute temperature (i.e, in Kelvin)

and M is molecular mass of gas in kg

Gamma(¥) is also = 1 + 2/f.....

where f is degree of freedom

so value for f for both air(NITROGEN as it is more in content) and carbon dioxide is 5 as N2 is diatomic and CO2 is triatomic( linear).

so as f is same for both N2(or air) and CO2 we can keep GAAMA as such as it will cancel out while solving

So velocity of sound in air= √¥RT/ 28 × 10^-3

where 28×10^-3 is molecular weight of nitrogen in kg

and velocity of sound in CO2= √¥RT/44×10^-3

where 44×10^-3 is molecular weight of CO2 in kg

Then divide...

velocity of sound in CO2/ velocity of sound in air = (√¥RT/44 × 10^-3) / ( ¥RT/28 × 10^-3)

as already given that velocity of sound in air=348.2 m/s

so you can keep that value in above equation and then you will get finally the velocity of sound in carbon dioxide i.e. 276.89 m/s

I HOPE it will help ...Please mark it as BRAINLIEST if it is right

ANSWER:

The two FACTORS that affect the BOILING point of water are the pressure the water is under and whether or not there are IMPURITIES or particles in the...

Answer:

Direction of magnetic field at point p wil be perpendicularly inward and at point Q it will be perpendicularly outward... while magnetic field at point Q is larger then at point p.

Explanation:

Simply for direction of magnetic field at point P and Q you can use right hand thumb rule....

PLACE your thumb in the direction of current and then curl your finger, so at point p you will see that you fingers will go inside the plane of paper so here at point p direction of magnetic field will be inward to the plane of paper or perpendicularly inward.....You can follow same procedure at point Q, there you will get direction of magnetic field as outward to the plane of paper or perpendicularly outward....

I am assuming that given wire in your question is infinite length wire....

So for infinite length current carrying wire formula of magnetic field is

B= (mu)oI/2πr......

where (mu)o is permeability of free space

I is current in wire

and r is distance of point from wire..

So as you see in above formula that mu, I and 2π are constant for both point it will not change for both point. Only the thing that will affect value of magnetic field is r (since both points are at different distance from wire)

so we can say B is inversely proportional to r

Hence we say that the point which is far from wire will have less value of magnetic field as COMPARED to the point which is near to wire.

So as distance of Q point(r2) is less as compared to distance of point p (r1) so there at point Q we will have maximum magnetic field......

NOTE: i had assumed the wire to be of infinite length

if it help then MARK it as brainliest and feel free to ask any doubt related to solution....

Answer:

Tha q is from D & F BLOCK ELEMENTS

ANSWER:

OVUM...........................

HEYA !!!

This is your answer.

Given :

u = 98 m/s

G = -9.8 m/s². ( As it is thrown upwards)

v = 0 (As it will stop after reaching heighest point)

Using

2gs = v² - u²

2 × -9.8 × s = - (98 × 98)

s = (98 × 98)/(2 × 9.8)

s = 98 × 5

s = 490 m.

Now, Using

v = u + at

0 = 98 - 9.8 × t

t = 10 s

Hope You Got It

ANSWER:

hi

Explanation:

IM a SPAMMER THANKS for the points

1/2=2/3

a) The each plate of a capacitor receives charge of exactly the same magnitude

• The capacitor PLATES are generally connected in series.In series CONNECTION the charge would be same on every ELEMENT in the circuit
• So the plates of a capacitor have equal charge

b) Yes the STATEMENT is true even in the case of different sizes of plates

• The CAPACITANCE of a capacitor depends on several factors such as area of the plates and also the separation between them
• The charge on the capacitor plates is independent on these factors and is sane on both the plates

Answer:

This is based on the conservation of momentum, according to this the momentum of bullet should be EQUALS to momentum of GUN.

Pbullet = Pgun

P= mv

Mass of bullet is 20 GM= 0.02 kg , velocity= 400m/sec

Mass of gun = 8kg, and let velocity is V

So, 0.02×400 = 8×V

So, V= 1 m/sec

This is the RECOIL velocity of gun

ANSWER:

CHARGES are ADDITIVE in nature

CHARGE is a CONSERVED quantity

Quantization of charge

Answer:

EXPLANATION:

IM not sure but answer is 50 km / hr  or 14 metre/ SECOND APPROXIMATELY

ANSWER:

yes itsit's TRUE

PLS mark it as BRAINLEST answer

Answer:

9 is the answer

Explanation:

(13+5)/2

ANSWER:

???????????????????