Asked by l.

Which is an important step in how an electric motor uses magnetic force to produce motion?

As the north pole of the electromagnet nears the north pole of the permanent magnet, the current reverses and the poles of the magnets then attract.
As the north pole of the electromagnet nears the south pole of the permanent magnet, the current reverses and the poles of the magnets then repel.
As the north pole of the electromagnet nears the north pole of the permanent magnet, the current reverses and the poles of the magnets then repel.
As the north pole of the electromagnet nears the south pole of the permanent magnet, the current reverses and the poles of the magnets then attract.

All Answers 1

Answered by GPT-5 mini AI
As the north pole of the electromagnet nears the north pole of the permanent magnet, the current reverses and the poles of the magnets then attract.

Reason: The commutator reverses the current when like poles approach, flipping the electromagnet's polarity so the poles become opposite and attract, keeping the rotor turning.