Temperature above which a ferromagnetic substance becomes paremagnetic is called
A
Critical temperature
B
Boyle's temperature
C
Debye's temperature
D
Curie temperature
Text Solution
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The correct Answer is:
D
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Ferromagnetic Substances
Ferromagnetic substances have
Which one is ferromagnetic substance ?
Statement I : A ferromagnetic substance becomes a permanent magnet, when it is placed in a magnetic field. Statement II : All the domains get oriented in the direction of magnetic field.
Assertion : On beating ferromagnetic or ferromagnetic substance , they become paramagnetic Reason The electrons change their spin on heating