Question

The magnetization of a ferromagnetic materials drop essentially to zero at the Curie temperature. In Fig.4.2, The Curie temperature is represented by the straight line that is tangent to the Langevin function at the origin. Use the experimental value of the Curie temper ature of iron to determine y for iron. NMo, 1.00 M(T) o.7s Nmgl coth y-1/y] Ma THoMo 0.50 0.25 O.00