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If your computer is using a CRT (instead of an LCD or plasma screen), the electromagnet is causing the electron beam to "bend" as it passes across the screen to make the image. If your computer uses a hard-drive, electro-magnets are used to position the read/write head, to spin the disk and to write to the head. An electro magnet is also used to spin the motor of the cooling fan(s). Electro-magnets are part of your automobile's electrical system as well. The starter motor uses electro-magnets as do all electric motors, the ignition coil is little more than specialized electro-magnets, the automatic door actuators are electro-magnets as are the injectors and any relays. Electro-magnets are everywhere, you just need to know where to look.

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โˆ™ 2010-07-16 10:05:34
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Q: What can an electromagnet be used for?
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Why is an electromagnet not used in a compass?

An electromagnet is not used in a compass as it needs electricity (an electric current)


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== ==


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An electromagnet is used.;)


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Electromagnets are widely used now. Instead of traditional magnets.


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Soft iron is used as the core of an electromagnet. It increases the strength of the magnet.


Why would an electromagnet be used in a scrapyard?

An electromagnet would be used to separate ferrous metals from other debris and it would also be used to lift loads of ferrous metals.


Why electromagnet is used for separating plastic bags?

An electromagnet can attract the metal, leaving the plastic behind.An electromagnet can attract the metal, leaving the plastic behind.An electromagnet can attract the metal, leaving the plastic behind.An electromagnet can attract the metal, leaving the plastic behind.


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When would you want to use an electromagnet rather than a permanent magnet?

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Why are electromagnets used in earphones?

The electromagnet is part of the speaker, it causes the vibrations that become sound. Without the electromagnet, there would be no sound.


What can a electromagnet be used for?

picking up vehicles in a scrapheap


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iron box


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in door bells,


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Which metal or alloy is used for making a strong electromagnet?

Iron is used for electromagnets.


Where are electromagnets used in industry?

Everywhere. Every electric motor is an example of an electromagnet. They are used for picking up scrap metal. Almost everything modern with moving parts has an electromagnet in it.


What are the uses of a electromagnet?

There are many uses of the electromagnet, it is used to invent generators and electric motors, used it to control the switch relay, use in practical industries, and even in an electric bell etc. Because the electromagnet is a type of magnet in which the magnetic field is produced by the electric current.


Why is electromagnet used in magnetic crane?

The electromagnet has two important advantages:* Electromagnets are much stronger than permanent magnets * They can be turned on and off