Question

An alternating current can be produced by:

• A. transformer
• B. generator
• C. turbine
• D. electric motor

Answer 1

Answer: (B)

generator

Transformer is an electrical device that transfers energy between two or more circuits through electromagnetic induction.

Generator is a device that converts mechanical energy to electrical energy for use in an external circuit.

Turbine is a rotary mechanical device that extracts energy from a fluid flow and converts it into useful work.

Electric Motor is an electrical machine that converts electrical energy into mechanical energy.