Magnet and magnetic field pattern. Clumping of iron filings in the presence of a ring magnet and its magnetic field. The magnetised iron filings align due to the interactions between them, even though the magnetic field itself is continuous. Magnetism is a property of ferromagnetic metals (such as iron, nickel and cobalt) caused by the alignment of the spins of the electrons in the metal.
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Creative#:
TOP10392859
Source:
達志影像
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RM
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