Which device converts electrical energy into mechanical energy?

Which device converts electrical energy into mechanical energy?

• A. Generator
• B. Transistor
• C. Electric motor
• D. Transformer

Answer: (C)

The device that converts electrical energy into mechanical energy is the electric motor. Electric motors work on the principle of electromagnetism, where an electric current flows through coils of wire, creating a magnetic field. This magnetic field interacts with the magnets in the motor, causing the rotor to turn and produce mechanical motion. In contrast, a generator transforms mechanical energy into electrical energy by rotating coils within a magnetic field, effectively doing the reverse of what an electric motor does. A transistor, on the other hand, is a semiconductor device primarily used for switching and amplification of electrical signals rather than for converting energy types. A transformer is designed to change the voltage level of alternating current (AC) in power systems and does not involve mechanical energy. Hence, the electric motor is the correct choice for converting electrical energy into mechanical energy.

The device that converts electrical energy into mechanical energy is the electric motor. Electric motors work on the principle of electromagnetism, where an electric current flows through coils of wire, creating a magnetic field. This magnetic field interacts with the magnets in the motor, causing the rotor to turn and produce mechanical motion.

In contrast, a generator transforms mechanical energy into electrical energy by rotating coils within a magnetic field, effectively doing the reverse of what an electric motor does. A transistor, on the other hand, is a semiconductor device primarily used for switching and amplification of electrical signals rather than for converting energy types. A transformer is designed to change the voltage level of alternating current (AC) in power systems and does not involve mechanical energy. Hence, the electric motor is the correct choice for converting electrical energy into mechanical energy.