(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.

(a) When a charge Q moves between two points whose potential difference is V, the amount of work done is given by

$W = Q \times V$


(b)
Given: A charge of 4 coulombs is moved from a point at 220 volts to another point at 230 volts.
To find: Work done
Solution:

Potential difference = 230 - 220 = 10 V

$W = Q \times V$

Therefore, $W = 4 \times 10 = 40 \ J$

Work done = 40 joule

Updated on: 10-Oct-2022

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