Question

The energy required to charge a 10 μF capacitor to 100 V is ____________

(a) 0.01 J

(b) 0.05 J

(c) 5 X 10^-9 J

(d) 10 X 10^-9 J

I had been asked this question during an online interview.

This is a very interesting question from Advanced Problems on Two Port Network topic in chapter Two-Port Networks of Network Theory

Answer 1

The correct option is (b) 0.05 J

Explanation: E = \(\frac{1}{2}\)  CV^2

= 5 X 10^-6 X 100^2

= 0.05 J.