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प्रश्न
Two substances A and B have their relative permeability slightly greater and slightly less than 1 respectively. What do you conclude about A and B as far as their magnetic materials are concerned?
उत्तर
Since the permeability of a paramagnetic is slightly greater than 1 and that of a diamagnetic substance is less than A, A must be paramagnetic and B must be diamagnetic.
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संबंधित प्रश्न
Distinguish between diamagnetic and paramagnetic substances
Explain Curie’s law for a paramagnetic substance.
Which of the following substances are para-magnetic?
Bi, Al, Cu, Ca, Pb, Ni
Which of the following statements is correct for diamagnetic materials?
All atoms of a magnetic substance have a resultant magnetic moment even in absence of external magnetic field. The substance is ______.
Which graph shows the variation of magnetic susceptibility (`chi`) with magnetizing field (H) for a paramagnetic substance?
A paramagnetic sample shows a net magnetisation of 8 Am–1 when placed in an external magnetic field of 0.6 T at a temperature of 4 K. When the same sample is placed in an external magnetic field of 0.2 T at a temperature of 16 K, the magnetisation will be ______.
What is magnetic hysterisis?
Explain the meaning of the following statement:
Curie temperature for soft iron is 770°C.
