At a point on the axis (but not inside the dipole and not at infinity) of an electric dipole

At the mid-point of an electric dipole,

Define a point electric dipole?

At a point on the axis of an electric dipole

Explain the terms electric dipole and dipole moment. Derive a relation for the intensity of electric field at an equitorial point of a electric dipole.

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.