A) strongly repelled by magnets
B) feebly repelled by magnets
C) feebly attracted by magnets
D) strongly attracted by magnets
Correct Answer: B
Solution :
Key Idea: The susceptibility of diamagnetic substances is negative. Diamagnetic substances are feebly magnetized in a direction opposite to that of the field. Thus, the susceptibility of diamagnetic substances is negative. Further the flux density in a diamagnetic substance placed in a magnetizing field is slightly less than that in the free space. The relative permeability of diamagnetic substances is less than 1. Hence, these substances are feeble repelled by a magnet while paramagnetic substances are feebly attracted by a magnet and ferromagnetic substances are strongly attracted by a magnet.
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