What machines operate on the same principle of electromagnetic induction as DC generators, but they have no commutator?

A) alternators
B) transformers
C) oscillators
D) converters

Electromagnetic Induction

The process by which a voltage or electromotive force is generated in a conductor by varying the magnetic field around the conductor.

Commutator

A device used in electric motors and generators to periodically reverse current direction between the rotor and the external circuit.

Alternators

Machines that convert mechanical energy to electrical energy by producing alternating current, commonly used in cars to charge the battery and power the electrical system when the engine is running.