Which term refers to the stationary part of an electric motor?

Which term refers to the stationary part of an electric motor?

• A. Stator
• B. Rotor
• C. Armature
• D. Commutator

Answer: (A)

Stator is the stationary part. It forms the outer structure of the motor and contains the windings or permanent magnets that produce the magnetic field. The rotor sits inside and is the part that actually spins, turning the shaft. In DC machines, the armature is typically the rotor winding and the commutator is on the rotor to switch current, while the stator stays fixed. In AC machines, the stator windings create a rotating magnetic field that drives the rotor. So the term for the part that stays put is stator.

Stator is the stationary part. It forms the outer structure of the motor and contains the windings or permanent magnets that produce the magnetic field. The rotor sits inside and is the part that actually spins, turning the shaft. In DC machines, the armature is typically the rotor winding and the commutator is on the rotor to switch current, while the stator stays fixed. In AC machines, the stator windings create a rotating magnetic field that drives the rotor. So the term for the part that stays put is stator.