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Ferromagnetic Or Ferrimagnetic Materials Are Used For Making Permanent Magnets
Dec 22, 2018

ferromagnetic or ferrimagnetic materials are used for making permanent magnets these materials includes iron, nickel, cobalt and some rare earth metals. These materials were exposed to strong magnetic fields until it retains its magnetic field. The amount of magnetic field to be exposed is usually determined by a parameter called retentivity which is the measure of amount of magnetic field to be exposed to retain magnetic field in a material.

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