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what is self demagnetization?how can it happen ?

Self demagnetization occurs in the magnets when they are left for a long time. The magnetic field around the magnetic material tries to demagnetize it and thus the magnet gets partially demagnetize when left for long time.

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Self-demagnetization occurs in magnets. It may occur due to being left open as contacts wirh near magnetism things

cheers!!!

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If magnet is hammerd or falls from height it looses its magnet thats called Demagnetization...thank u hpe it works

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