Gadolinium sulphate obeys Langevin's theory of paramagnetism down to a few degrees Kelvin. Its molecular magnetic moment is 7.2*10^-23 ano-m^2. Determine the degree of magnetic saturation in this salt at a temperature of 2K in a field of flux density 2 weber/m^2.
Here ,we need to find out a=uH/kT according to Langevin's theory of paramagnetism.u=magnetic moment,H=magnetic field strength,T=temperature and k=9 x 10^9. Hence a(magnetic saturation)= 6.37 x 10^-27
Gadolinium sulphate obeys Langevin's theory of paramagnetism down to a few degrees Kelvin. Its molecular magnetic...