The work done in placing a charge of 8 x 10^-18 is coulomb on a capacity 100 micro-fared is

Question

The work done in placing a charge of 8 × 10^–18 coulomb on a condenser of capacity 100 micro-farad is

(a) 16 × 10^–32joule 

(b) 3.1 × 10^–26joule

(c) 4 × 10^–10joule

 (d) 32 × 10^–32joule.

Answer 1

The correct option is (d) 32 x 10^-32 joule.

Explanation:

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