[" Derive an expression for the potential at a "],[" distance from a point charge "]

Derive an expression for the potential at a distance r from a point charge +q .

Derive an expression for potential energy.

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 potential at a point due to a group of point charges?

Derive an expression for electric field intensity at a distance r from a point charge q.

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