Electric potential is a measure of the potential energy per unit charge at a specific point in an electric field. It indicates how much work is needed to move a positive charge from a reference point, usually at infinity, to that point in the field. The unit of electric potential is the volt (V), which represents one joule of energy per coulomb of charge. Electric potential is crucial in understanding how electric charges interact. When a charge moves within an electric field, it experiences a change in electric potential energy, which can result in the flow of electric current. This concept is fundamental in various applications, including batteries, capacitors, and electrical circuits.