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Physics · Magnets and magnetic fields

PhysicsMagnets and magnetic fieldsWAEC

A bar magnet can be demagnetised by

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Answer: A. hammering it while it lies east-west

Hammering in the east-west direction disorders the domains. The other methods magnetise or protect the magnet.

An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.

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