For a ferromagnetic material, the magnetization \( \vec{M}\ \) is:
1
Directly proportional to the applied magnetic field \( \vec{M}\ \)
2
Inversely proportional to the applied magnetic field \( \vec{M}\ \)
3
A nonlinear function of \( \vec{M}\ \)
4
Independent of the applied magnetic field \( \vec{M}\ \)