4.08 Definitions of the terms relating to electrical potential.

Circuit voltages.

There are two types of voltages in a circuit, e.m.f.s and voltage drops. There also several different terms used to describe voltages in electrical circuits, e.g. potential difference, voltage drop, etc. The difference between these various terms should be learned as you develop your understanding of electrical circuits. The list below defines these terms. Read through it briefly then use it for reference as needed.