Question

The electric field due to a dipole at a distance$r$ on its axis is

• A. Directly proportional to $r^{3}$
• B. Inversely proportional to $r^{3}$
• C. Directly proportional to $r^{2}$
• D. Inversely proportional to $r^{2}$

Answer 1

Answer: (B)

Inversely proportional to $r^{3}$

Answer 2

$E = \frac{1}{4\pi\varepsilon_{0}}.\frac{2p}{r^{3}}$