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what is Curie's Law? Explain.

+4 votes
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asked Aug 21, 2016 in Chemistry by Rahul Roy (7,955 points)
commented Aug 21, 2016 by vikash (21,287 points)
@Rahul, While asking questions never forget to write topics name in topics box.It will be easier for the students or teachers to find questions related to the topics.

1 Answer

+2 votes
answered Aug 21, 2016 by vikash (21,287 points)
selected Aug 21, 2016 by sarthaks
 
Best answer

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)

where,

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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