Physics - Key Words 0.0 / 5 ? PhysicsElectricityGCSEWJEC Created by: chelsea.davxoxCreated on: 17-03-17 15:29 Circuit A closed loop through which charge moves - from an energy source, through a series of components, and back into the energy source. 1 of 6 Current Moving electric charges, for example, electrons moving through a metal wire. 2 of 6 electrical component A device in an electric circuit, such as a battery, switch or lamp. 3 of 6 fuse An electrical component that protects circuits and electrical devices from overload by melting when the current becomes too high. 4 of 6 oscilloscope A device used to measure and observe electrical signals over time. 5 of 6 potential difference The potential difference (or voltage) of a supply is a measure of the energy given to the charge carriers in a circuit. Units = volts (V) 6 of 6
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