What is the term for the difference in electric potential between two points in a circuit?

The term used to describe the difference in electric potential between two points in a circuit is known as voltage potential difference. This concept is fundamental in electrical engineering and physics since it is essentially what drives electric current through a circuit. When there is a difference in voltage, it creates an electric field that causes charged particles (typically electrons) to flow from the point of higher potential to the point of lower potential, thereby generating current.

Understanding voltage potential difference is crucial as it helps to identify how much energy per unit charge is available to perform work within an electrical system. It's measured in volts (V) and is a key parameter in determining how circuits function, the design of electrical systems, and various applications across engineering disciplines.