An iron rod of susceptibility 599 is subjected to a magnetising field of 1200 A m^-1. The permeability of the material of the rod is: (μ_0=4 π ×…

An iron rod of susceptibility $\displaystyle 599$ is subjected to a magnetising field of $\displaystyle 1200 \mathrm{~A} \mathrm{~m}^{-1}$. The permeability of the material of the rod is : $$\left(\mu_0=4 \pi \times 10^{-7} \mathrm{~T} \mathrm{~m} \mathrm{~A}^{-1}\right) $$