what are the uses of electromagnet ?
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Answers
Answer:
Electromagnets are very widely used in electric and electromechanical devices, including:
• Motors and generators.
• Transformers.
• Pickups.
• Relays.
• Electric bells and buzzers.
• Loudspeakers and headphones.
• Actuators such as valves.
• Magnetic recording and data storage. equipment: tape recorders, VCRs, hard disks.
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Answer:
Magnets are cool. There are all kinds of fun experiments you can do with them, but their usefulness can be rather...limited. A magnet is always a magnet. It always attracts. Sometimes you want that, such as with a fridge magnet, but not always. By using electromagnets, that all changes, and the applications become endless.
An electromagnet is a magnet that is created using an electric current, created by electricity. Since electricity can be turned on and off, so can an electromagnet. It can even be weakened or strengthened by decreasing or increasing the current.
An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. Electromagnets usually consist of wire wound into a coil. A current through the wire creates a magnetic field which is concentrated in the hole, denoting the centre of the coil. The magnetic field disappears when the current is turned off. The wire turns are often wound around a magnetic core made from a ferromagnetic or ferrimagnetic material such as iron; the magnetic core concentrates the magnetic flux and makes a more powerful magnet.