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प्रश्न
The permanent magnetic moment of the atoms of a material is zero. The material _________________ .
विकल्प
must be paramagnetic
must be diamagnetic
must be ferromagnetic
may be paramagnetic
उत्तर
must be diamagnetic
Paramagnetic and ferromagnetic materials have non zero permanent magnetic moment on their own. Only atoms of diamagnetic materials have zero permanent magnetic moment.
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संबंधित प्रश्न
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(A) If the magnetic field is increased, the magnetisation is increased.
(B) If the temperature is increased, the magnetisation is increased.
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