Question

An AC generator is a device which converts:

• A. Electrical energy to mechanical energy.
• B. Heat energy to electrical energy.
• C. Heat energy to light energy.
• D. Mechanical energy to electrical energy.

Answer 1

The correct option is D Mechanical energy to electrical energy.

An AC generator converts mechanical energy into electrical energy, while a motor does the opposite - it converts electrical energy into mechanical energy. Both devices work because of electromagnetic induction, which is when a voltage is induced by a changing magnetic field.