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What is the difference between magnet and electromagnet? |
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Answer» \tPermanent magnetElectromagnet(i) A permanent magnet is a magnet forever. It will never lose its magnetism.(i) When the current is switched off the electromagnet loses its magnetism.(ii) The power of a permanent magnet can neither be increased nor decreased.(ii) Its power can be increased or decreased.(iii) Its use is limited.(iii) Its use is more widely spread.(iv) The South – North polarity of a permanent magnet is fixed and they cannot be changed(iv) The South – North polarity of a permanent magnet can be changed by changing the direction of the current in the coil.\t A magnet is the substance which acttract matel not use ing energy there are two types of magnet 1natural 2artfical magnets and electromagnet is start ed on by which passes the current on the wire the wires work as a magnet this magnet are called electromagnet |
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