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प्रश्न
What is magnetic susceptibility?
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उत्तर
It is defined as the ratio of the intensity of magnetisation `(vec"M")` induced in the material due to the magnetising field `(vec"H")`
`χ_"m" = |vec"M"/vec"H"|`
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संबंधित प्रश्न
Explain the following with suitable examples:
Paramagnetism
Give the properties of dia/para/ferromagnetic materials.
Example of ferromagnetic substance is ____________.
Fe3O4 is ____________.
Which of the following statements is not true?
Which of the following statements are correct?
(i) Ferrimagnetic substances lose ferrimagnetism on heating and become paramagnetic.
(ii) Ferrimagnetic substances do not lose ferrimagnetism on heating and remain ferrimagnetic.
(iii) Antiferromagnetic substances have domain structures similar to ferromagnetic substances and their magnetic moments are not cancelled by each other.
(iv) In ferromagnetic substances all the domains get oriented in the direction of magnetic field and remain as such even after removing magnetic field.
Some of the polar crystals when heated produces small electrical current. This phenomenon is called ______.
The susceptibility of a paramagnetic material is 99. The permeability of the material in Wb/A-m is ______.
[permeability of the free space μ0 = 4π × 10-7 Wb/A - m]
Among the following ions, which one has the highest paramagnetism?
Give a reason for the following:
Cu+2 salts are paramagnetic, while Cu+ salts are diamagnetic.
