Why a magnet attracts only iron? …
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Balwant Kumar 4 years, 6 months ago
Magnets attract iron due to the influence of their magnetic field upon the iron. Before a piece of iron first enters the magnetic field of a magnet. the polarization of the iron's atoms is random. As it is exposed to the magnetic field, the atoms of the iron begin to align their electrons with the flow of the magnetic field, which makes the iron magnetized as well. This, in turn, creates an attraction between the two magnetized objects.
Silver, copper and gold does not turn magnetic on its own. In a magnetic field it magnetizes a very tiny amount, in the direction to repel the field.
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