Identify the correct expression for the electric potential at a point situated on the…

PHYSICS · Single correct · CBSE · Physics · Electrostatic Potential and Capacitance · Electrostatic Potential and Capacitance

Problem

Identify the correct expression for the electric potential

V

at a point situated on the axial line (

\theta = 0^{\circ}

) of an ideal electric dipole of moment

p

at a distance

r

from its centre. (a)

\dfrac{1}{4\pi\epsilon_0}\dfrac{2p}{r^{2}}

(b)

\dfrac{1}{4\pi\epsilon_0}\dfrac{2p}{r^{3}}

(c)

\dfrac{1}{4\pi\epsilon_0}\dfrac{p}{r^{2}}

(d)

\dfrac{1}{4\pi\epsilon_0}\dfrac{p}{r}