Electric Field: An electric field is a region of space surrounding a charged particle or object in which other charged particles experience a force. The electric field describes the strength and direction of the electric force at every point in space.
Coulomb's Law: Coulomb's law is the fundamental principle that describes the force between two stationary, electrically charged objects. It states that the force between two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.
Electric Potential: Electric potential is the potential energy per unit charge at a given point in an electric field. It is the work done per unit charge in moving a test charge from infinity to that point in the field.