The magnetic field in an electromagnet is actually produced by the coil of wires with a current running through it. However certain materials, termed 'ferromagnetic' materials concentrate the magnetic flux when a rod of the material is placed within the coil (termed the 'magnetic core'). The most common of materials used for this have been iron based.
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Electro magnets can be used to attract metals temperarily while permanent magnet would be used for compasses.
Materials such as iron, cobalt, nickel, and certain alloys containing these elements are known for their high electromagnetic properties. These materials are often used in the production of magnets and electromagnetic devices due to their ability to retain magnetization effectively.
Electromagnets and bar magnets both produce magnetic fields. They can attract or repel other magnetic materials, and the strength of their magnetic field depends on the strength of the current flowing through the electromagnet or the material of the bar magnet. Additionally, both electromagnets and bar magnets can be used in a wide range of applications, from speakers and motors to magnetic levitation systems.
Electro magnets differs from permanent magnet because it requires electricity. A simple electro magnet consists of an iron rod wrapped in a coil of copper and when electricity flows through the copper, a magnetic field is formed.
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.
They can be used in Junk yards to pick up junk. They can be used in a Dentist.
car wreck (scrapyards) metel dedectors at airports
Electro-magnets
of course not.
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Lead is not typically used in magnets. Magnets are usually made from materials such as iron, nickel, and cobalt. Lead is not a magnetic material and is not commonly used in the production of magnets.
Yes, because electromagnets can lose their magnetism.
Yes, electromagnets itself is an artificial magnet.
Industrial strength magnets are used widely for lifting, work holders,and chucks.
Electromagnets are used to make electric power because magnets are a type of electricity,and electro is at the front.
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.