Electric Field due to a short dipole at any general point

Electric Field due to Dipole

Electric field due to an electric dipole is

If E_(a) be the electric field strength of a short dipole at a point on its axial line and E_(e) that on the equatorial line at the same distance, then

Deduce an expression for the electric potential due to an electric dipole at any point on its axis. Mention one contrasting feature of electric potential of a dipole at a point as compared to that due to a single charge.

Starting from Eq. 24-54 derive the expression for the electric field due to a dipole at a point on the dipole axis.