Question

If a magnetic material is having magnetic susceptibility $\left(X\right)=-1$, then the relative magnetic permeability $\left({\mu }_r\right)$ and type of magnetic material will be

• A. $0$, diamagnetic
• B. $2$ ferromagnetic
• C. $1$ paramagnetic
• D. $-1$, diamagnetic

Answer 1

Answer: (A)

$0$, diamagnetic

Here, $X=-1$
then ${\mu }_r=1+X\Rightarrow {\mu }_r=1+(-1)=1-1=0$
Since magnetic susceptibility of given material is less than one. Hence, the given magnetic material is a diamagnetic material.