Why do Poles exist in pairs ??
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Magnetism is produced by electric current. A magnet will always have a pair of poles, a north and a south because magnetic field lines are continuous and always form closed loops. Each magnetic field line is directed from the north pole to it's south pole.
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The magnetic poles always exist in pairs.It is not possible to seperate the two poles of a magnet. If a bar magnet is broken at middle in two parts, each part is found, to be a magnet.......thus the two poles of a magnet exist simultaneously...
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