Lots of things do. For example, relays. (The electronical component)
Electro-magnets
of course not.
duplicate
Electro magnets can be very useful to carry heavy loads of iron and metal from one side of a factory to another. Electro-magnets are formed by shooting electricity through a coil of copper.
Yes, because electromagnets can lose their magnetism.
Yes, electromagnets itself is an artificial magnet.
For a simple electro-magnet use a DC supply.
A loud speaker can use electro magnets and i hope this helps =)
car wreck (scrapyards) metel dedectors at airports
(electro) Magnets in the "track".
They can be used in Junk yards to pick up junk. They can be used in a Dentist.
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.