Write an equation of electric potential at a point due to an electric dipole.

(N/A) The electric potential $V$ at a point $P$ due to an electric dipole at a distance $r$ from the center of the dipole,where the position vector of the point makes an angle $\theta$ with the dipole moment vector $\vec{p}$,is given by:
$V = \frac{1}{4\pi\epsilon_0} \frac{p \cos\theta}{r^2}$
Where:
$p$ is the magnitude of the electric dipole moment.
$r$ is the distance from the center of the dipole to the point $P$.
$\theta$ is the angle between the position vector $\vec{r}$ and the dipole moment vector $\vec{p}$.
$\epsilon_0$ is the permittivity of free space.