Question

20J of work has to be done against an existing electric field to take a charge of -0.1C from A to B, then potential difference VB -VA is what?

Answer 1

Answer:

Explanation:

Work w=q*v

Pot.diff v=w/q

20/0.1=200

Answer 2

Answer:

Explanation:

V=w/q

or, v=20/0.1

or, v=200

Va-vb=200 volt.