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Curie Law:

The curie law states that in a paramagnetic material the magnetization of the material is directly proportional to an applied magnetic field. But the case is not the same when the material is heated. When it is heated, the relation is reversed i.e. the magnetization becomes inversely proportional to temperature. 

Or, The law that the magnetic susceptibilities of most paramagnetic substances are inversely proportional to their absolute temperatures.

Mathematically, it is written as

M = C x (B / T)


M is the magnetization

B is the magnetic field, measured in teslas

T is absolute temperature, measured in kelvins

C is a material-specific Curie constant

This concept was initially proposed by French physicist, Pierre Curie and the concept holds good for high    temperatures and weak magnetic fields.

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