Deduce an expression for potential at a point due to gravitational field.

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

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

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

Derive an expression for electric potential at-a point due to an electric dipole with the help of diagram and hence calculate electric potential when the point is on the axial lline of electric dipole.

Derive an expression for electric potential at a point due to electric dipole. Hence find its value on equatorial line?

Derive an expression for electric potential at any point due to electric dipole. Show that the potential at a point on the equatorial line of an electric dipole is zero.