The magnetic susceptibility of an ideal diama | vedclass

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Question

(A) For a magnetic material,the relative permeability $\mu_r$ is related to the magnetic susceptibility $\chi_m$ by the equation $\mu_r = 1 + \chi_m$.

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(A) For a magnetic material,the relative permeability $\mu_r$ is related to the magnetic susceptibility $\chi_m$ by the equation $\mu_r = 1 + \chi_m$.An ideal diamagnetic substance is a perfect diamagnet,which exhibits the Meissner effect.In a perfect diamagnet,the magnetic field inside the material is zero,meaning $B = 0$.Since $B = \mu_0 H(1 + \chi_m)$,for $B$ to be $0$,we must have $1 + \chi_m = 0$.Therefore,the magnetic susceptibility of an ideal diamagnetic substance is $\chi_m = -1$.

The magnetic susceptibility of an ideal diamagnetic substance is

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