Question

In an AC generator, what happens each time the armature turns halfway?

The magnetic field changes polarity.
The current changes charge.
The magnetic field changes direction.
The current changes direction.

Answer 1

[AI-generated answer — Bot]

Each time the armature of an AC generator turns halfway, the current changes direction. This is because as the armature rotates, the loops of wire within it cut through the magnetic field of the generator, which induces an alternating current (AC) in the wire. The direction of the current changes as the armature turns, producing an oscillating flow of electricity that can be used to power appliances or charge batteries.