Find the potential at a point due to two point charges. Discuss the result for a general charge distribution?

Find the electric field intensity due to a general charge distribution.

Derive an expression for potential at a point due to a group of point charges?

Draw the equipotential surfaces due to an isolated point charge.

Derive an expression for electric potential at a point due to a point charge.

The electric field at a point due to a point charge is 20NC^-1 and the electric potential at the point is 10JC^-1 Calculate the distance of the point from the charge and the magnitude of the charge.

Is the force of interaction between two points charges affected due to the presence to another charge?

Show that the electric field due to a point charge is conservative?