8 11-1 Classification of Magnetic Media and Magnetic Permeability 磁介质的分类磁导率 1 Magnetization of media介质的磁化 B B=B 0 tB 0 matter Magnetization(磁化)B0  matter §11－1 Classification of Magnetic Media and Magnetic Permeability 磁介质的分类 磁导率 1. Magnetization of Media 介质的磁化 Magnetization(磁化） B = B + B    0