Answers

2015-09-03T20:52:38+08:00
Nothing, but if you're stroking it it'll magnetize or there will be a force of attraction
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2015-09-03T20:53:18+08:00
They will attract with each other when the first nail is attracted into a permanent magnet,,and that is because of induced magnetism,,the iron nails will be called then as induced magnets
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