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Sunday, 7 January 2018

The critical temperature above which ferromagnetic materials lose their magnetic property is called

  By GK Planet Team       Sunday, 7 January 2018
Q. The critical temperature above which ferromagnetic materials lose their magnetic property is called

A. Kelvin Point
B. Curie Point
C. Recrystallizaion point
D. Celsius Point

Answer: Curie Point

Below the Curie temperature, the atoms are aligned and parallel, causing spontaneous magnetism; the material is ferromagnetic. Above the Curie temperature, the material is paramagnetic, as the atoms lose their ordered magnetic moments when the material undergoes a phase transition.
Curie Point was discovered by Pierre Curie that beyond a certain temperature ferromagnetic materials lose their magnetic properties, i.e. the ability to have a net magnetization in the absence of an external magnetic field. This so-called critical temperature (or the Curie point) is different for each material.
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Thanks for reading The critical temperature above which ferromagnetic materials lose their magnetic property is called

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