Question

The electric potential at a point on the axis of an electric dipole depends upon the distance $ r(>>a) $ of the point from centre of the dipole as:

• A. $ \propto r $
• B. $ \propto \frac{1}{r} $
• C. $ \propto \frac{1}{{{r}^{2}}} $
• D. $ \propto \frac{1}{{{r}^{3}}} $

Answer 1

Answer: (C)

The electric potential at any point on the axis of electric dipole, $ V=\frac{p}{4\pi {{\varepsilon }_{0}}{{r}^{2}}} $ or $ V\propto \frac{1}{{{r}^{2}}} $