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Ferrimagnetic is converted into paramagnetic at (in K) :

Option: 1

500


Option: 2

400


Option: 3

700


Option: 4

850


Answers (1)

best_answer

Ferrimagnetism:

In ferrimagnetic substances, there is an unequal number of parallel and antiparallel magnetic momenta which leads to some resulting magnetic moment. 

For example, Fe3O4, Ferrites

Effect of Temperature:
The ferromagnetic, anti-ferromagnetic and ferrimagnetic solids change into paramagnetic at a particular temperature. For example, Ferrimagnetic Fe3O4 on heating to 850 K becomes paramagnetic this is due to the alignment of spins in one direction on heating.

 

Ferrimagnetic is converted into paramagnetic at 850 K because at high-temperature randomisation of spin changes.
 

Posted by

Ramraj Saini

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