Magnetism And Matter Ques 4
4. The magnetic susceptibility is negative for :
[2016]
(a) diamagnetic material only
(b) paramagnetic material only
(c) ferromagnetic material only
(d) paramagnetic and ferromagnetic materials
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Answer:
Correct Answer: 4.(a)
Solution:
- (a) Magnetic susceptibility $\chi$ for dia-magnetic materials only is negative and low $|\chi|=-1$; for paramagnetic substances low but positive $|\chi|=1$ and for ferromagnetic substances positive and high $|\chi|=10^{2}$.