Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Electrostatic Potential and Capacitance

Question:

The figure given below shows two parallel equipotential surfaces A and B kept a small distance r apart from each other. A point charge of q couloub is taken from the surface A to B. The amount of net work W done will be

Options:

$ W = - \frac{q}{4\pi \epsilon_0 r}$

$ W = - \frac{q}{4\pi \epsilon_0 r^2}$

$ W =  \frac{q}{4\pi \epsilon_0 r^2}$

Zero

Correct Answer:

Zero

Explanation:

$W = q\Delta V = q (0) = 0$