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Explain different ways to induce current...

Explain different ways to induce current in a coil.

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Following would be the different ways to induce current in a coil :(a) Either coil or a magnet should be in motion relative to each other, then there will be an induced current in the coil.
(b) If there is relative motion between a current-carrying and a coil without current, then there will be an induced current in the second coil.
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