The component of a three-phase motor that converts electrical energy to mechanical energy is the?

The component of a three-phase motor that converts electrical energy to mechanical energy is indeed the rotor. In a three-phase motor, electrical energy supplied to the stator creates a rotating magnetic field. The rotor, which is located inside the stator, is subjected to this rotating magnetic field, causing it to turn. This spinning motion is what transforms the electrical energy into mechanical energy, allowing the motor to perform work, such as turning a fan, pump, or conveyor.

While the stator generates the magnetic field and is vital for the motor's operation, it is the rotor that actively converts the energy and does the physical work. The armature typically refers to the rotating component in DC motors, and the end bell is a structural part that houses the rotor and stator but does not participate in the energy conversion process itself.