Q74 / 90 · JEE Main 2024 (30 Jan Shift 1) · Physics

The electrostatic potential due to an electric dipole at a distance $r$ varies as :

A
$r$
Correct answer
B
$\frac{1}{r^{2}}$
C
$\frac{1}{r^{3}}$
D
$\frac{1}{r}$

Solution

The potential at a distance $r$ due to a short dipole is $V_{d i p} (r) = \frac{1}{4 π ε_{\circ}} \frac{\vec{p} \cdot \hat{r}}{r^{2}}$ , where $\vec{p}$ =dipole moment.

Thus, $V_{d i p} (r)$ is proportional to $\frac{1}{r^{2}}$ .

Hence, the correct answer is option: 'B'.

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The electrostatic potential due to an electric dipole at a distance r varies as :

Solution

Relevant Questions

The electrostatic potential due to an electric dipole at a distance $r$ varies as :