Q. On rotating a point charge having a charge $q$ around a charge $Q$ in a circle of radius $r.$ The work done will be
A) $Q \times 2\pi r$
B) $\frac{q \times 2\pi Q}{r}$
C) Zero
D) $\frac{Q}{2\varepsilon_{0}r}$
Explanation
(c) [image:1_image356.emf]
When a charge is moved from one point to the other over an equipotential surface, work done will be zero
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.