The variation of magnetic susceptibility (chi | vedclass

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(A) For a ferromagnetic material,the magnetic susceptibility $(\chi)$ is related to the absolute temperature $(T)$ by the Curie-Weiss law for temperat

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(A) For a ferromagnetic material,the magnetic susceptibility $(\chi)$ is related to the absolute temperature $(T)$ by the Curie-Weiss law for temperatures above the Curie temperature $(T_c)$:$\chi = \frac{C}{T - T_c}$where $C$ is the Curie constant.As the temperature $T$ increases towards $T_c$,the susceptibility $\chi$ decreases rapidly. Below the Curie temperature,the material is ferromagnetic and exhibits high susceptibility. Above the Curie temperature,the material transitions into a paramagnetic state,and its susceptibility follows the inverse relationship with $(T - T_c)$. The correct graphical representation for this behavior is a curve that starts at a high value and decreases as $T$ increases,as shown in option $(A)$.

The variation of magnetic susceptibility $(\chi)$ with absolute temperature $(T)$ for a ferromagnetic material is:

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