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प्रश्न
Why is it not possible to make permanent magnets from paramagnetic materials?
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उत्तर
Permanent magnets are made from the material that are easily magnetized and retain the magnetization even reverse magnetizing field is applied (high coercivity). Paramagnetic materials get small magnetization, if they are placed in magnetic field, they lose their magnetization easily if the reverse field is applied. Hence, they are not used to make permanent magnet.
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संबंधित प्रश्न
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