Question

The electric field and the potential of an electric dipole vary with distance r respectively as:

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

Answer 1

The correct option is D $\frac{1}{r^3}$ and $\frac{1}{r^2}$

$E=\frac{kp}{r^3}\sqrt{1+3co{s}^2\theta }V=\frac{kpcos\theta }{r^2}$