Question

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

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

Answer 1

The correct option is A $0$, diamagnetic

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