What is produced by generators in power systems?

• A. Light
• B. Electricity
• C. Heat
• D. Sound

Answer: (B)

Generators in power systems produce electricity. They convert mechanical energy, often from a turbine or engine, into electrical energy through electromagnetic induction: spinning a rotor inside a magnetic field induces a voltage in the windings, delivering electrical power to the grid as alternating current. Light, heat, and sound aren’t the primary outputs of a generator itself—those can occur when electricity is used (lighting, heating, or producing sound) or as incidental losses in the machine. So the main product you get from a generator is electricity.