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Explain how a magnet gets demagnetized w...

Explain how a magnet gets demagnetized when an alternative current is passed through a coil in which the magnet is placed.

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Alignment of the molecular magnet changes when an alternate current is passed through it.
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How can a magnet be demagnetized ?

A steel bar can be magnetized by passing alternating current through a coil wound on the steel bar.

Knowledge Check

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    B
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