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Dictionary » E » Electromagnet

Electromagnet

Electromagnet

(Science: physics) a mass, usually of soft iron, but sometimes of some other magnetic metal, as nickel or cobalt, rendered temporarily magnetic by being placed within a coil of wire through which a current of electricity is passing. The metal is generally in the form of a bar, either straight, or bent into the shape of a horseshoe.


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Life Science

In order to vary field strength as Mith says, you would need a electro-magnet. http://www.howstuffworks.com/electromagnet.htm As far a regular magnets. Neodymium magnets, also called rare earth magnets are the bomb. Maybe too expensive though, about 2-5 bucks. They can be found ...

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by MichaelXY
Sat Dec 15, 2007 8:33 am
 
Forum: General Discussion
Topic: Life Science
Replies: 29
Views: 1929

Life Science

Ok, I got one for you. Determine the affects of electromagnetism on fish. Place a electromagnet in the center of the tank, and observe the reaction of the fish. Just be sure to not to use greasy dirty stuff to stick in the tank, afterall we do not ...

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by MichaelXY
Wed Dec 12, 2007 2:29 am
 
Forum: General Discussion
Topic: Life Science
Replies: 29
Views: 1929


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