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THFerromagnetic materials are strongly attracted to magnets and can retain their magnetism even after the magnet is removed.
This happens because their unpaired electrons align in the same direction, forming magnetic domains. Examples include iron, cobalt, and nickel.
Paramagnetic materials are weakly attracted to a magnet due to the presence of unpaired electrons, which align in the direction of the magnetic field. However, they lose their magnetism once the field is removed. Examples include aluminum, platinum, and liquid oxygen.
Diamagnetic materials repel magnets as they have paired electrons, which create tiny opposing currents when exposed to a magnetic field.
Superconductors are perfect diamagnets, completely expelling magnetic fields due to the Meissner effect. Examples include bismuth, water, and superconductors.
Credit: @lincolnphysics
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