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What is electromagnet ?

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What is electromagnet ?
  • 2 answers

Yogita Ingle 6 years, 10 months ago

Electromagnets are made out of a coil of wire (wire curled in series). This is more effective in producing a magnetic field than just a wire running straight. This effect can be strengthened by winding a wire tightly around a powerful core, made of magnetic material, such as iron. The picture above shows a coil wound around an iron nail. On its own, the iron nail is not magnetic.

?Sayeda Faria Ainee? 6 years, 10 months ago

When the electric current is switched off, the coil generally loses its magnetism. Such coils are called electromagnet.
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