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Explain the difference between permanent magnets and electromagnets What are generators and motors

Explain the difference between permanent magnets and electromagnets
What are generators and motors
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Answer #1

A permanant magnet offers a magnetic field always without the help of any current where as electromagnets are like temporary magnets, they will offer magnetic field only when current is passed through them and when current is switched off they will lose their magnetic nature and behave normally.

Generator is a device that converts MECHANICAL ENERGY of rotating coil into ELECTRICAL ENERGY.

Motor is a device that converts the ELECTRICAL ENERGY in the coil into MECHANICAL ENERGY i.e rotation of shaft

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