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Q. The electric potential due to a small electric dipole at a large distance $r$ from the centre of the dipole is proportional to

WBJEEWBJEE 2007

Solution:

$V_{\text {axis }}=\frac{1}{4 \pi \varepsilon_{0}} \times \frac{P}{r^{2}}$
or $V_{\text {axis }} \propto \frac{1}{r^{2}}$