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प्रश्न
State three ways of demagnetising a magnet.
लघु उत्तर
उत्तर
A magnet can be demagnetized in the following ways:
- rough handling
- hammering the magnet several times.
- passing an alternating current around the magnet.
- dropping the magnet on the floor several times.
- heating the magnet to a very high temperature.
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Demagnetization of a Magnet
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