Question

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. $\propto \frac{1}{r^{3}}$

Answer 1

Answer: (B)

$\propto \frac{1}{r^{2}}$

Answer 2

Electric potential due to dipole in it's general position is given by $V = \frac{k.p\cos\theta}{r^{2}}$ ⇒ $V \propto \frac{1}{r^{2}}$