AC Generator

- a device that produces a potential difference - Consists of a coil of a wire rotating in a magnetic field - As one side of the coil moves up through the magnetic field, a potential difference is induced in one direction, as the rotation continues and that side of the coil moves down, the induced potential difference reverses direction ∴ the current is constantly changing - maximum PD or current can be increased by: - increasing the rate of rotation - increasing the strength of the magnetic field - increasing the number of turns on the coil graph looks like this: ~~~~