contestada

The electric current running through the wire coil in an electric motor exerts force directly onto
A) the battery.
B) an aluminum axle.
C) a powerful magnet.
D) a rubber insulator.

Respuesta :

C) A powerful magnet

The correct choice is

C) a powerful magnet.

we know that a current carrying wire creates magnetic field around it. inside this magnetic field, when a magnet comes, the magnet experience magnetic force. This same thing happen in motor which is known as motor effect.

the electric current running through coil creates magnetic field which exerts the force on the permanent magnet.


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