What are the methods by which a magnet can be demagnetised?
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Demagnetization processes include heating past the Curie point, applying a strong magnetic field, applying alternating current, or hammering the metal. Demagnetization occurs naturally over time.
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Answer:
By droppin it from height several times.,hammering it,passing electric current,forcebly keeping it near to the like poles of other strong magnets. Answer: Permanent magnets can be demagnetized in the following ways: Heating a magnet past its Curie point will destroy the long range ordering
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