In terms of construction, AC induction motors are described as?

In terms of construction, AC induction motors are described as?

• A. Having brushes and armature
• B. Having no brushes or armature
• C. Having only brushes
• D. Having a commutator

Answer: (B)

AC induction motors generate torque without any direct electrical connection to the rotor. The stator creates a rotating magnetic field, and currents are induced in a closed rotor path (usually a squirrel-cage design). Because the rotor isn’t connected to the power supply, there are no brushes, armature windings, or a commutator. That’s why the description is having no brushes or armature. Other motor types rely on brushes and a commutator or have an armature wound to the supply, which induction motors do not use.

AC induction motors generate torque without any direct electrical connection to the rotor. The stator creates a rotating magnetic field, and currents are induced in a closed rotor path (usually a squirrel-cage design). Because the rotor isn’t connected to the power supply, there are no brushes, armature windings, or a commutator. That’s why the description is having no brushes or armature. Other motor types rely on brushes and a commutator or have an armature wound to the supply, which induction motors do not use.