Which part of an alternator is stationary?

The stator is the component of an alternator that remains stationary while the rotor is spinning inside it. The stator is composed of a set of wire windings, and as the rotor, which is electromagnetically induced, spins within the stator's magnetic field, it generates alternating current (AC). The design of an alternator maximizes the efficiency of electricity generation by having the rotor move through the magnetic field produced by the stationary windings in the stator.

In contrast, the rotor, field coil, and speed control are associated with the dynamic parts of the alternator. The rotor rotates, the field coil generates a magnetic field either by permanent magnets or electromagnets, and the speed control regulates the alternator's output based on engine speed. Thus, acknowledging the function of the stator as the stationary part clarifies its crucial role in converting mechanical energy into electrical energy through electromagnetic induction.