State the relation between potential difference, work done, and charge moved. b) Calculate the work done in moving a charge of 4 Coulomb from a point at 220 Volts to another point at 230 Volt.

1. Potential difference = (Work done)/(Charge moved)

1. Given, V1 = 220V V2 = 230V

Charge moved = 4C Potential difference = ?

We know that potential difference is:

Potential difference = V2 – V1

= 230 – 220 = 10

Work done = Potential difference × charge moved

= 10 × 4 = 40J

Therefore, the work done is 40J to move charges.