Question

The magnetic induction and magnetising field intensity in a sample of magnetic material are $B$ and $H$ respectively. The magnetic susceptibility of the material is

• A. $\frac{B}{{\mu }_{0}H}$
• B. $\frac{B}{{\mu }_{0}H}-1$
• C. $\frac{B}{H}-1$
• D. $\frac{{\mu }_{0}H}{B}-1$

Answer 1

Answer: (B)

$B={\mu }_0(I+H)$
$B={\mu }_0\left(x_{m}H+H\right)$
$X_m=\frac{B}{{\mu }_{0}H}-1$