Question

how much work is done is done in moving a charge of 3 C across two points having a pd 15 V ?

Answer 1

we know that
W=Vq
=15×3
=45J.
Hope this is right.

Answer 2

hey.. here's ur solution : -

potential difference = V = 15 V.

charge = Q = 3 C.

work done = W = ?

we know,
V = W / Q


15 V. = W / 3 C.


W = 15 V × 3 C.

W = 45 J


thus, work done in moving the charge is 45 J.


hope it might be helpful :)