Discussion Forum



1)

If Mz = magnetisation  of a paramagnetic sample, B- external magnetic field, T= absolute temperature, C= curie constant, then  according to Curie's law in magnetism, the correct relation is 

 


A) $M_{z}=\frac{T}{CB}$

B) $M_{z}=\frac{CB}{T}$

C) $C=\frac{M_{z}B}{T}$

D) $C=\frac{T^{2}}{M_{Z}B}$

Answer:

Option B

Explanation:

Here, 

 M2= magnetization of a paramagnetic sample

B= external magnetic field

 T= absolute temperature

C= Curie constant

 Curie's law in magnetism states that in paramagnetic material, the material's magnetization is directly proportional to the applied field, but when temperature increases the relation is reversed, i.e, the magnetization becomes inversely proportional to the temperature. Mathematically, it is written as 

$M_{2}=\frac{C\times B}{T}\Rightarrow C= \frac{M_{2}.T}{B}$