2007-01-30 08:21:20 · 6 answers · asked by chocoholic23511 3 in Science & Mathematics ➔ Physics
It's the science of electricity, electric fields, magnetics and magnetic fields.
2007-01-30 08:26:21 · answer #1 · answered by Gene 7 · 1⤊ 0⤋
Electrical conductors are woung around a iron core material and then the electrical circuit is completed. This will creat a magnetic field and an electrical field around the iron matieral and will cause the device to exhibit a strong magnetic field. Thus you have an electromagnetic.
2007-01-30 08:31:35 · answer #2 · answered by Anonymous · 1⤊ 0⤋
Electromagnets are magnets that are 'turned on' by an electric current. They are made by taking a pices of metal (called the core) that can be magentic (iron for example) and wrapping it in an insulated conductor. If a DC current is passed through the conductor a magnet is formed. The strength of the magnet depends on the number of wraps around the core and the amount of current flowing through the conductor. The polarity depends on the direction of the flow of the current.
The types of magenets are widely used in electric power generation.
2007-01-30 08:32:34 · answer #3 · answered by jeremycharles7 2 · 0⤊ 1⤋
An electromagnet is a magnet that is run by electricity. That is to say, a piece of metal that attracts other metals that have iron in them only when electric current(like a battery) is run through them. They're easy to make--you can make one with a battery, some wire and a nail.
2007-01-30 08:31:36 · answer #4 · answered by Monique K 3 · 0⤊ 1⤋
electromagnets?? magnets that are created in the presence of the electric current
2007-01-30 08:28:58 · answer #5 · answered by ddroxana 2 · 0⤊ 1⤋
It is the most fascinating subjects in electronic and electrical. If you have a full grasps of the concept and application, you can make a lot of money.
Go do a search in the wikipedia.
2007-01-30 08:25:18 · answer #6 · answered by Anonymous · 1⤊ 1⤋