Question

Charge $ q_2$ is at the centre of a circular path with radius r. Work done in carrying charge $q_1$ once around this equipotential path, would be

• A. $ \frac{1}{ 4 \pi \varepsilon_0} \times \frac{ q_1 q_2 }{ r^2 }$
• B. $ \frac{1}{ 4 \pi \varepsilon_0 } \times \frac{ q_1 q_2 }{r}$
• C. zero
• D. infinite

Answer 1

Answer: (C)

Work done on carrying a charge from one place to another on an equipotential surface is zero.