Electromotors work by electricity passing through the paper clips and into the sanded side of the armature. Then, an electromagnet is created. The north pole of the electromagnet and the south pole of the field magnet attract and the armature starts spinning. Then the non sanded side touches the paper clips, but since paint is an insulator, it shuts off the electromagnet. Momentum keeps it going, and as the sanded side touches the paper clips again, the electromagnet is turned back on. The poles of the magnet are reversed, and it keeps on going. Electromagnets are used in anything that rotates and is powered by a battery.
Friday, January 6, 2012
Electromotor
Electromotors work by electricity passing through the paper clips and into the sanded side of the armature. Then, an electromagnet is created. The north pole of the electromagnet and the south pole of the field magnet attract and the armature starts spinning. Then the non sanded side touches the paper clips, but since paint is an insulator, it shuts off the electromagnet. Momentum keeps it going, and as the sanded side touches the paper clips again, the electromagnet is turned back on. The poles of the magnet are reversed, and it keeps on going. Electromagnets are used in anything that rotates and is powered by a battery.
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