What is the potential difference between two points in a circuit commonly known as?

The potential difference between two points in a circuit is referred to as voltage. It is a measure of the electrical energy per unit charge that is available for the flow of electrons between those two points. Voltage indicates the driving force that pushes electric current through a circuit, allowing electrical devices to function.

In a circuit, when a voltage is applied, it creates an electric field that causes the electrons to move, resulting in current flow. Understanding voltage is fundamental in analyzing and designing electrical circuits, as it directly affects the behavior of all circuit components, including resistors, capacitors, and inductors.

The other terms represent different concepts in the realm of electricity: current refers to the flow of electric charge; resistance is the opposition to that flow; and power quantifies the rate at which energy is consumed or converted in the circuit. Each term holds significance in its own right, but they do not define the concept of potential difference like voltage does.