Solved: PHYSICS Question for NEET

NEET PHYSICSEasy

The magnetic susceptibility is negative for:

paramagnetic material only.

ferromagnetic material only.

paramagnetic and ferromagnetic materials.

diamagnetic material only.

Definition: Magnetic susceptibility ( $\chi$ ) is a measure of how a magnetic material responds to an external magnetic field.
Diamagnetic Materials: For diamagnetic substances, the material is feebly repelled by the magnetic field. This corresponds to a negative magnetic susceptibility, typically in the range $-1 \le \chi < 0$ .
Paramagnetic Materials: These substances are weakly attracted by a magnetic field, corresponding to a small positive susceptibility ( $0 < \chi < \epsilon$ ) .
Ferromagnetic Materials: These substances are strongly attracted by a magnetic field, corresponding to a large positive susceptibility ( $\chi \gg 1$ ) .
Conclusion: Only diamagnetic materials exhibit negative magnetic susceptibility.

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