Question

Define electric dipole, Derive the
formula for electrostatic potential
at point on the axis (in end-on
position) of an electric dipole​

Answer 1

Thus due to an electric dipole ,potential, V∝r21. (ii) When the point P lies on the equatorial line of the dipole, θ=90∘ cosθ=0. i.e electric potential due to an electric dipole is zero at every point on the equatorial line of the dipole