Magnetization, Magnetic Induction Susceptibility Questions in English

(B) Given: Magnetic susceptibility,$\chi = 499$.
Permeability of vacuum,$\mu_0 = 4 \pi \times 10^{-7} \ H/m$.
Relative permeability of the rod is given by the relation: $\mu_r = 1 + \chi$.
Substituting the value of $\chi$: $\mu_r = 1 + 499 = 500$.
Absolute permeability $\mu$ is given by: $\mu = \mu_r \mu_0$.
Substituting the values: $\mu = 500 \times 4 \pi \times 10^{-7} \ H/m$.
$\mu = 2000 \pi \times 10^{-7} \ H/m$.
$\mu = 2 \pi \times 10^{-4} \ H/m$.