Question

The work done in placing a charge of 8 Ã 10^â18 coulomb on a condenser of capacity 100 micro-farad is

Answer 1

Explanation : The work done is stored as the potential energy . The potential energy stored in a capacitor is given by

W=12Q2c=12(8×10−18)2100×10−6

=32×10−32J.

Answer 2

Answer:32×10^-32

Explanation:

Given:

Q=8×10^-18

C=100×10^-6

Work done is stored as potential energy.

U=1/2(Q^2/C)

0.5×{(8×10^-18)/(100×10^-6)}

=32×10^-32