Question

Calculate the amount of work done to carry 4c of charge from a point at 100v to point at 120v.

Answer 1

Answer: 80 J

Explanation:

We have to calculate the amount of work done to carry 4c of charge from a point at 100v to point at 120v.

We know, work done W = charge (q) x potential difference$(V_d)$

or, $W = q \times V_d$

Given that, the charge q = 4 C is moved from the potential $V_1 =100 V$ to another potential $V_2 = 120 V$

So the potential difference $V_d = V_2 - V_1 = (120-100) V = 20 V$

W = 4 C x 20 V

W = 80 Joule