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.
An electromagnet is not used in a compass as it needs electricity (an electric current)
no...only magnetic materials can be used as electromagnet...zinc is not a magnetic material
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An electromagnet is used in an electrical engine, but an electrical engine contains normal magnets too.
the telegraph when typed when through electromagnet circuit's to get to the other person
An electromagnet is used.;)
Electro Magnetic is correct
I'm not sure where a bar magnet is used, but an electromagnet is used in junkyards, and in some laboratories.
Electromagnets are widely used now. Instead of traditional magnets.
Soft iron is used as the core of an electromagnet. It increases the strength of the magnet.
to produce sound
cobalt