Question

The relation between magnetic susceptibility ${\chi }_m$ and relative permeability ${\mu }_r$ is

• A. ${\chi }_m={\mu }_r$
• B. ${\chi }_m-1={\mu }_r$
• C. ${\mu }_r=1+{\chi }_m$
• D. ${\mu }_r=1-{\chi }_m$

Answer 1

The correct option is C ${\mu }_r=1+{\chi }_m$

We know that $\mu ={\mu }_{\circ }(1+Xm)\frac{\mu }{{\mu }_{\circ }}=(1+Xm)\mu r=(1+Xm)\mu r=relativepermeability$