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Class 12
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Physics
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Magnetism and Matter
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Ferromagnetic Material
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Curie's Law and Curie's Temperature
Curie's Law and Curie's Temperature
4 Mins
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Curie's Law
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QUICK SUMMARY WITH STORIES
Curie's Law and Curie's Temperature
3 mins
Important Questions
Explain ferromagnetism on the basis of domain theory?
Medium
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>
The magnetic susceptibility is negative for:
Medium
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>
If the magnetizing field on a ferromagnetic material is increased, its permeability
Medium
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>
The variation of magnetic susceptibility with the temperature of a ferromagnetic material can be ploted as :
Easy
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>
The coercivity of a small magnet where the ferromagnet gets demagnetized is
3
×
1
0
3
A
m
−
1
. The current required to be passed in a solenoid of length
1
0
c
m
and number of turns
1
0
0
, so that the magnet gets demagnetized when inside the solenoid, is:
Medium
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>
State and explain Curie's law.
Easy
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>
A thin diamagnetic rod is placed vertically between the poles of an electromagnet. When the current in the electromagnet is switched on, then the diamagnetic rod is pushed up, out of the horizontal magnetic field. Hence the rod gains gravitational potential energy. The work required to do this comes from.
Easy
NEET
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>
The substances which are attracted towards a magnet are called _______.
Medium
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For diamagnetic materials, magnetic susceptibility is
Easy
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>
Curie temperature is the temperature above which
Easy
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>