how does an electric motor use magnetic force to produce motion?\no the north pole of a permanent magnet…

how does an electric motor use magnetic force to produce motion?\no the north pole of a permanent magnet placed in the center of an electromagnet attracts the north pole of the electromagnet.\no the north pole of an electromagnet placed in the center of a permanent magnet attracts the north pole of the permanent magnet.\no the north pole of a permanent magnet placed in the center of an electromagnet repels the north pole of the electromagnet.\no the north pole of an electromagnet placed in the center of a permanent magnet repels the north pole of the permanent magnet.

how does an electric motor use magnetic force to produce motion?\no the north pole of a permanent magnet placed in the center of an electromagnet attracts the north pole of the electromagnet.\no the north pole of an electromagnet placed in the center of a permanent magnet attracts the north pole of the permanent magnet.\no the north pole of a permanent magnet placed in the center of an electromagnet repels the north pole of the electromagnet.\no the north pole of an electromagnet placed in the center of a permanent magnet repels the north pole of the permanent magnet.

Answer

Brief Explanations:

In an electric motor, an electromagnet and a permanent magnet interact. Like - poles (both north poles in this case) repel each other. This repulsion force is used to produce motion. Opposite poles attract, so the options with attraction between north - poles are incorrect.

Answer:

The north pole of an electromagnet placed in the center of a permanent magnet repels the north pole of the permanent magnet.