The magnetic moment produced in a substance of mass 5 gram is $6 \times 10^{-7} \mathrm{Am}^{2}$. If its…
The magnetic moment produced in a substance of mass 5 gram is $6 \times 10^{-7} \mathrm{Am}^{2}$. If its density is $5 \mathrm{~g} / \mathrm{cm}^{3}$, then intensity of magnetization in $\frac{\mathrm{A}}{\mathrm{m}}$ will be
6
60
$\frac{1}{6}$
$0 \cdot 6$
Solution
volumev $=\frac{\text { mass }}{\text { density }}=\frac{5_{\mathrm{g}}}{5_{\mathrm{g}} / \mathrm{cm}^{3}}=1 \mathrm{~cm}^{3}=10^{-6} \mathrm{~m}$
$=\frac{6 \times 10^{-7}}{10^{-6}}$
$=0.6_{\mathrm{Nm}}^{\text {volume }}$