Which component generates the magnetic field necessary for rotor motion in a motor?

The stator is the component that generates the magnetic field necessary for rotor motion in a motor. In a single-phase motor, the stator is made up of winding coils that are energized with an alternating current (AC). This current flowing through the coils creates an electromagnetic field.

The interaction between this magnetic field produced by the stator and the magnetic field of the rotor is what induces rotor movement. As the stator's magnetic field rotates, it causes the rotor to turn, which is essential for motor operation. Without the stator generating the magnetic field, the rotor would not be able to move.

While the winding coils are part of the stator, it is specifically the entire assembly of the stator that produces the necessary magnetic field. The rotor relies on this field for its motion; thus, it is the stator that plays the crucial role in generating the magnetic field. Other components like the capacitor serve specific functions in aiding motor start or improving efficiency, but they do not directly create the magnetic field necessary for rotor motion.