Will there be any effect on potential at a point if the medium arround this point is changed.

Define electrostatic potential at a point.

Define gravitational potential at a point

Calculate the electric potential for a point charge.

What is meant by potential at a point? Find an expression for potential at a point due to a point charge.

Deduce the expression for potential due to a point charge.

What is point defect?

Find the relationship between the intensity and potential at a point in an electric field. What is meant by potential gradient of a field?

Define the term 'electrostatic potential'. Derive an expression for electric potential at a point along the axial line of an electric dipole.

Two heavy spheres each of mass 100 kg and radius 0.10 m are placed 1.0 m apart on a horizontal table. What is the gravitational force and potential at the mid point of the line joining the centers of the spheres? Is an object placed at that point in equilibrium? If so, is the equilibrium stable or unstable?