Question

The relative permeability of a medium is $0.075$. What is the magnetic susceptibility?

• A. $0.925$
• B. $-0.925$
• C. $1.075$
• D. $-1.075$

Answer 1

The correct option is B $-0.925$

$\frac{\mu }{{\mu }_0}=1+{\chi }_m$

$\Rightarrow 0.075-1={\chi }_m$

${\chi }_m=-0.925$