Describe the general purpose of a motor.

• A. Transforms electrical energy into mechanical energy
• B. Stores electrical energy
• C. Regulates voltage
• D. Transforms mechanical energy into electrical energy

Answer: (A)

Motors convert electrical energy into mechanical energy, producing motion and torque to drive a load. When current flows through the motor’s windings within a magnetic field, forces act on the rotor to rotate the shaft, delivering mechanical power to actuators, pumps, fans, or other devices. This is the fundamental direction of energy conversion for a motor. The other ideas describe storing electrical energy (like a battery or capacitor), regulating voltage (a regulator), or producing electricity from motion (a generator), none of which capture the motor’s primary purpose.