Find the electric field intensity at any point on the axis of a uniformly charged ring or loop.

Define electric field intensity at a point.

Using Gauss' law, derive expression for the electric field intensity at any point outside a uniformly charged shell Draw the field lines when the charge density of the shell is positive

Using Gauss' law, derive expression for the electric field intensity at any point outside a uniformly charged shell Draw the field lines when the charge density of the shell is negative.

Define electric field intensity at a point. Give its S.I. units. Derive an expression for the electric field intensity at any point on the axial line of an electric dipole.

State Gauss' theorem in electrostatics. Derive an expression for the electric field intensity at any point of to an infinite plane sheet of charge.