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13/07/2021 5:08 pm
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(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.
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13/07/2021 5:11 pm
(a) Potential difference = Work done/Charge moved.
(b) V1 = 220 V, V2 = 230 V, Charge moved = 4C
Thus, the potential difference = V2 - V1
= 230 - 220
= 10
We know that,
Work done = Potential difference x Charge moved
= 10 x 4
Work done = 40 joules