Which device converts mechanical energy into electrical energy?

Which device converts mechanical energy into electrical energy?

• A. A turbine
• B. A generator
• C. A rotor
• D. An alternator

Answer: (B)

Electricity is produced when mechanical energy is converted into electrical energy via electromagnetic induction inside a generator. When a prime mover applies force to turn the generator’s rotor, conductors in the windings move through a magnetic field, inducing an electric current. That’s the essence of how a generator works, turning motion into electricity. A turbine, by itself, extracts energy from a fluid to create rotational motion; it doesn’t generate electricity on its own. A rotor is simply the rotating component inside many machines, not an energy converter by itself. An alternator is a specific type of generator designed to produce alternating current, but the general energy-conversion device is the generator.

Electricity is produced when mechanical energy is converted into electrical energy via electromagnetic induction inside a generator. When a prime mover applies force to turn the generator’s rotor, conductors in the windings move through a magnetic field, inducing an electric current. That’s the essence of how a generator works, turning motion into electricity.

A turbine, by itself, extracts energy from a fluid to create rotational motion; it doesn’t generate electricity on its own. A rotor is simply the rotating component inside many machines, not an energy converter by itself. An alternator is a specific type of generator designed to produce alternating current, but the general energy-conversion device is the generator.