Question

If $\mu_0$ is absolute permeability of vacuum and $\mu_r$ is relative magnetic permeability of another medium, then permeability $\mu$ of the medium is

• A. $\mu_0 , \mu_r$
• B. $\mu_0 / \mu_r$
• C. $\mu_r/ \mu_0$
• D. $1 /\mu_0 , \mu_r$

Answer 1

Answer: (A)

$\mu_0 , \mu_r$

Answer 2

If $\mu_{0}$ represents the permeability of free space and $\mu$ represents the permeability of a particular substance, then the relative permeability $\mu_{ r }$ of that substance is given by: $\mu_{r}=\frac{\mu}{\mu_{0}}$ $\Rightarrow \mu=\mu_{0} \mu_{ r }$