What does an electromagnet do in a motor?

Answer 1

for usa test prep

In an electric motor, at the moment that the half-turn of the rotor (central electromagnet) completes, the field of this electromagnet

it flips

if you think about it, if you put two positive or two negative sides of a magnet together what happens? one flips because they aren't attracting

Answer 2

When you wrap the wire around the nail, make certain that you wrap the wire all in one direction. You need to do this because the direction of a magnet field depends on the direction of the electric current creating it. The movement of electric charges creates a magnetic field. If you could see the magnetic field around a wire that has electricity flowing through it, it would look like a series of circles around the wire. If an electric current is flowing directly towards you, the magnetic field created by it circles around the wire in a counter-clockwise direction. If the direction of the electric current is reversed, the magnetic field reverses also and circles the wire in a clockwise direction. If you wrap some of the wire around the nail in one direction and some of the wire in the other direction, the magnetic fields from the different sections fight each other and cancel out, reducing the strength of your magnet.

Answer 3

it sends electrical current through wound spools of wire inside the motor called the stator creating a magnetic field and forcing the inside shaft which also has metal plates to turn. The natural 60hz cycle switches the poles from negative to positive 60 times per second causing the shaft to spin.

Answer 4

Electromagnets are made essentially by wrapping coils of wire around an iron core and passing a current through the wire. This produces a strong magnet.

Answer 5

there are no electromagnets in motors http://en.wikipedia.org/wiki/Electric_motor OR http://en.wikipedia.org/wiki/Electromagnet

Answer 6

It converts electrical energy into motion.