Magnetic susceptibility of a paramagnetic sub | vedclass

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(B) Key Idea: For a paramagnetic substance,the magnetic susceptibility is small and positive,because they get feebly magnetized when placed in an exte

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Small and positive

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(B) Key Idea: For a paramagnetic substance,the magnetic susceptibility is small and positive,because they get feebly magnetized when placed in an external magnetic field.The magnetic susceptibility of a substance,denoted by $\chi_m$,indicates how easily a substance can be magnetized. It is defined as the ratio of the intensity of magnetization $(I)$ to the magnetic intensity $(H)$ of the applied field:$\chi_m = \frac{I}{H}$For paramagnetic substances,$I$ is small and in the same direction as $H$,resulting in a small and positive value for $\chi_m$.

Magnetic susceptibility of a paramagnetic substance is

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