In electromagnetism, what behaves like an electromagnet
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When an electric current flows through a wire, it behaves like a magnet. „ A current carrying coil of an insulated wire wrapped around a piece of iron is called an electromagnet. The electromagnets are also used to separate magnetic material from the junk.
Electromagnets are very widely used in electric and electromechanical devices, including:
Motors and generators.
Transformers.
Relays.
Electric bells and buzzers.
Loudspeakers and headphones.
Actuators such as valves.
Magnetic recording and data storage equipment: tape recorders, VCRs, hard disks.
MRI machines.
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