I have a bar magnet and an unmagnetized iron bar that appear identical. Using only those to objects, how do I determine which is the magnet and which the plain iron bar? -
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/illustration-of-a-horseshoe-magnet-s-attractive-power-172221336-5c3feb6646e0fb00010fbb39.jpg "How to Demagnetize a Magnet")
How to Demagnetize a Magnet
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An unmagnetised magnetic material will always attract to a magnet if one is brought near to it as the domains in the unmagnetised material line up when the magnet is brought near
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IGCSE Physics - Unit 4 Electricity and magnetism
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