[" 13.Define electric dipole moment.Is it a scalar or a vector? Derive the expression for "],[" the electric field of a dipole at a point on the equatorial plane of the dipole."]

(a) Define electric dipole moment. Is it a scalar or a vector ? Derive the expression for the electric field of a dipole at a point on the equatorial plane of the dipole. (b) Draw the equipotential surfaces due to an electric dipole. Locate the points where the potential due to the dipole is zero.

Define electric dipole moment. Is it a scalar or vector quantity ?

Derive an expression for the electric field it a point on the equatorial line of an electric dipole.

Obtain an expression for the electric field intenstiy at a point on the equatorial line of an electric dipole.