Derive the expression for electric intensity at a point on the axis of a dipole

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

Derive an expression for electric field intensity due to a point charge in a material medium.

Derive an expression for electric potential due to a point charge

Derive an expression for thin prism.

Derive an expression for electric potential due to an electric dipole. Hence, state the expressions for electric potential for a point on its axis and equator.

SI unit of electric intensity is

Derive an expression for the electric intensity due to an electric dipole at a point on the axis of dipole. When a point charge of 5 xx 10^-9 C is taken from point A to point B, the work done is 10^-6 J. Find the potential difference between points A and points B.

Obtain an expression for electric field intensity at a point outside a charged conducting sphere.

Obtain an expression for electric field intensity at a point outside infinitely long charged conducting cylinder.

Derive an expression for magnetic induction at a point along axis of current carrying circular coil .