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 How long can an electromagnet keep its magnetism?

Answer According to Magnet Lab, an electromagnet is created by applying electricity to a piece of ferrous (iron-containing) material wrapped with wire. The strength of the resulting electromagnetic field ... Read More »
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Top Q&A For: How long can an electromagnet keep its magnetism

How is Magnetism Produced in an Electromagnet?

Electromagnets are used in a variety of devices, from stereo speakers to bullet trains. These devices utilize the principles of electromagnetism to induce a magnetic field on a piece of metal by ru... Read More »
http://www.ehow.com/how_8139114_magnetism-produced-electromagnet.html

What does magnetism mean?

Literally, magnetism refers to the force exerted by a magnetic field. Figuratively, magnetism is used to describe the strong power or attraction of something, particularly someone's personality or... Read More »
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Does magnetism work?

On One Hand: Magnetism Is a Proven Scientific PhenomenaMagnetism exerts influence on metals and magnetically charged bodies. Magnetism charges an object with two poles. These repel like poles and a... Read More »
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Relationship Between Electricity & Magnetism?

Magnetism and electricity involve the attraction and repulsion between charged particles and the forces exerted by these charges. The interaction between magnetism and electricity is called electro... Read More »
http://www.ehow.com/facts_7369988_relationship-between-electricity-magnetism.html


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