The magnetic susceptibility is negative for

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(B) The magnetic susceptibility $(\chi)$ indicates how a material responds to an external magnetic field. For diamagnetic materials, the magnetic susc

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Diamagnetic materials

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(B) The magnetic susceptibility $(\chi)$ indicates how a material responds to an external magnetic field. For diamagnetic materials, the magnetic susceptibility is negative, meaning they are weakly repelled by a magnetic field. For paramagnetic materials, the magnetic susceptibility is small and positive. For ferromagnetic materials, the magnetic susceptibility is large and positive. Therefore, the correct option is $(B)$.

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