Question

 Kinds of Electromagnets?

Answer Basically two types of magnets exist: permanent magnets and electromagnets. Permanent magnets do not use any external force to produce a magnetic field, while electromagnets use electrical energy t... Read More »
http://www.ehow.com/info_8497768_kinds-electromagnets.html

Top Q&A For: Kinds of Electromagnets

How do earphones use electromagnets?

They dont. They use a stationary permanent magnet, as a loudspeaker does. Ellectrostatic loudspeakers and earphones don't have any type of magnet.
http://wiki.answers.com/Q/How_do_earphones_use_electromagnets

Do ovens use electromagnets?

Newer freezers compliant to efficiency standards use R-404a. However an older unit may only be able to us R-22 (which will be completely phased out by 2020).
http://wiki.answers.com/Q/Do_ovens_use_electromagnets

What are electromagnets?

Electromagnets are magnets that use electricity to gain their magnetic properties. They are made up of a metal coil that is wrapped around an iron core. Powering the coil induces strong magnetic pr... Read More »
http://www.answerbag.com/q_view/1905505

Making Electromagnets?

Building your own electromagnet is a simple and inexpensive way to demonstrate one of the four fundamental forces in physics: electromagnetic force. Electromagnets work by taking the electromagneti... Read More »
http://www.ehow.com/how_6566740_making-electromagnets.html


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