What is the term used to describe the voltage difference between two points in a circuit?

The term used to describe the voltage difference between two points in a circuit is "Potential Difference." This concept is fundamental in understanding electrical circuits, as it signifies the energy per unit charge that is available to move electrons between two points.

Potential difference is commonly measured in volts (V) and is essential for the flow of electricity. When there is a difference in voltage across two points, it creates an electric field that can drive current through a conductor. In practical applications, this means that for electrical devices to work, they need a certain potential difference to be applied across their terminals.

Current, while related, refers to the flow of electric charge and does not itself describe the voltage difference. Power relates to the rate at which electrical energy is consumed or converted, and resistance measures the opposition to the flow of current. Each of these terms has distinct meanings and applications in electrical theory, but potential difference specifically denotes the voltage aspect.