Q. The work done in bringing a unit positive charge from infinite distance to a point at distance $x$ from a positive charge $Q$ is $W.$ Then the potential $\phi$ at that point is
A) $\frac{WQ}{x}$
B) $W$
C) $\frac{W}{x}$
D) $WQ$
Explanation
(b) The work done in bringing unit positive charge from infinity to a point which is at a distance $x$ from the positive charge $Q$ is defined as the potential at the given point due to the charge $Q.$ Therefore here $\phi = W$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.