On an a.c generator, which of the following does not apply?

  • A field magnet
  • B commutator
  • C armature
  • D slip rings
  • E carbon brushes
jamb 1978physics

The correct answer is B. commutator

A commutator is a component found in DC generators, not in AC generators.

In AC generators, the output is alternating current, and therefore, there is no need for a commutator to convert the generated AC to DC.

Instead, AC generators use slip rings and brushes to transfer the AC output to an external circuit.

Previous question Next question