Question

What does the given diagram represent?

• A. It represents a single-phase generator.
• B. It represents a moving coil microphone.
• C. It represents the armature of an AC generator.
• D. It represents a three-phase generator.

Answer 1

The correct option is D

It represents a three-phase generator.

The given diagram represents a three-phase generator. In three-phase generators, three armature coils are arranged around the field magnet at an angular separation of $120{}^{\circ }$ as shown in the given diagram.

When the field magnet rotates, three alternating currents of different phases are generated simultaneously in all the three armatures.