Magnetismwhichispresentonlywhenthematerialisundert

Magnetism which is present only when the material is under the influence of an external field is called ______.

A.permanent magnetism

B.induced magnetism

C.residual magnetism

D.terrestrial magnetism

正确答案：B
表现为仅仅当材料在外部磁场的影响下才有磁性叫做感应磁性