Question

The value of magnetic moment of a substance of volume ${10}^{-3}{m}^3$ is $6\times {10}^{-5}A{m}^2$. The intensity of magnetisation in $A/m$ will be :

• A. $6\times {10}^{-1}$
• B. $6\times {10}^{-2}$
• C. $6\times {10}^2$
• D. $6\times {10}^{-8}$

Answer 1

The correct option is B $6\times {10}^{-2}$

Intensity of magnetisation =magnetic moment/volume = $\frac{6\times {10}^{-5}}{{10}^{-3}}=6\times {10}^{-2}$