Q. The electric potential at a point on the axis of an electric dipole depends on the distance $r$ of the point from the dipole as
A) $\propto \frac{1}{r}$
B) $\propto \frac{1}{r^{2}}$
C) $\propto r$
D) $\propto \frac{1}{r^{3}}$
Explanation
(b) Electric potential due to dipole in it’s general position is given by $V = \frac{k.p\cos\theta}{r^{2}} \Rightarrow V \propto \frac{1}{r^{2}}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.