Question

Question 14:
(a) State the relation between potential difference, work done and charge moved.
(b) Calculate the work done in moving a charge of 4 coulombs from a point at 220 volts to another point at 230 volts.

Lakhmir Singh Physics Class 10

Answer 1

yeah sure for your help

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(A) Potential difference is equal to work done / charge move

V = w/q

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(B) charge = 4 colulombs

220 volt and 230 volt given to take charge intial to the given point

calculate work done

P.D . = w/q

230 - 220 = w/ 4

10 = w/ 4

w = 10 ×4 =40 Joule

Hence , 40 Joule work required to moving a charge of 4 columb from a point to another point




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Answer 2

hello friend....!!!

a) the relation between potential difference, work done, charge moved is :

V = W / Q -----------( 1 )

here v represent potential difference and W represents the work done and Q represents the charge moved.

2) according to the second question,

it is given that, Q = 4 C

V = 230 - 220 = 10 v

we know that,

V = W / Q

implies,

10 = W / 4

therefore ,

W = 4 X 10 = 40

therefore the work done in moving 4 C coloumb charge from 220v to 230 v is 40 Joules.



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hope it helps....!!!!