Question

In an electric motor, how do the electromagnet and the permanent magnets interact? A. The electric field of the permanent magnets causes the metal loop in the electromagnet to turn. B. The electromagnet causes the permanent magnets to repel each other. C. The permanent magnets reverse the current in the metal loop of the electromagnet. D. The electromagnet causes the permanent magnets to attract each other. ​

Answer 1

In an electric motor, the interaction between the electric current in the wire loops and the magnetic field created by the permanent magnets allows for the conversion of electrical energy to mechanical work.

Step-by-step explanation:

Electric motors contain wire loops in a magnetic field. When current is passed through the wire loops, the magnetic field exerts torque on the loops, causing them to rotate. The current is reversed every half rotation to ensure the torque remains in the same direction. The interaction between the electric current in the wire loops and the magnetic field created by the permanent magnets in the motor allows for the conversion of electrical energy to mechanical work, making the motor function.

Answer 2

In an electric motor, the electromagnet causes the permanent magnets to attract each other.

Step-by-step explanation:

Interaction of Electromagnet and Permanent Magnets in an Electric Motor

In an electric motor, the electromagnet and the permanent magnets interact in the following way:

The correct answer is D. The electromagnet causes the permanent magnets to attract each other.

When current is passed through the wire loops of the electromagnet, the magnetic field generated by the current interacts with the magnetic field of the permanent magnets. This interaction causes opposite poles of the permanent magnets and the electromagnet to attract each other, resulting in the motion of the motor.

For example, if the electromagnet has a north pole and the permanent magnets have south poles, the north pole of the electromagnet will attract the south pole of the permanent magnets, causing the motor to rotate.