The ratio of the potential of a point charge to its electric quantity in an electric field is called the point potential.

u=e/q

Where u stands for potential, e stands for potential energy and q stands for charge.

The work done by the electric field force to move the charge from a point to a zero potential point is called the electric potential energy of the charge at that point.

e=w=uq

Potential difference formula UAB = φ a-φ b