Which of the following is a component of a typical three-phase squirrel-cage motor?

A typical three-phase squirrel-cage motor consists of several key components, including the stator, rotor, and end shields. The stator is the stationary part of the motor, which contains the winding that produces a rotating magnetic field when energized with a three-phase current. This magnetic field interacts with the rotor, which is the rotating component of the motor. The rotor is usually constructed of conductive bars shorted at the ends, forming a cage-like structure – hence the name "squirrel cage."

Additionally, end shields are important for supporting the motor's shaft and housing the bearings, ensuring proper alignment and facilitating the stable operation of the rotor within the stator.

Understanding that all these components work together is crucial for the effective functioning of a three-phase squirrel-cage motor, making “all of the above” the correct choice, as it encompasses the essential elements that contribute to the operation of this type of motor. Each of these parts plays a role in the overall performance, efficiency, and durability of the motor, emphasizing their collective significance in motor design and operation.