A) \[8.0\times {{10}^{5}}A/m\]
B) \[8.0\times {{10}^{8}}A/m\]
C) \[8.0\times {{10}^{11}}A/m\]
D) \[8.0\times {{10}^{14}}A/m\]
Correct Answer: A
Solution :
[a] Magnetisation \[=\frac{Magnetic\text{ }moment}{volume}\] \[=\frac{9.27\times {{10}^{-24}}\times \frac{Volume\,\times \,density}{Molar\,mass}\times {{N}_{a}}}{Volume}\] \[=\frac{9.27\times {{10}^{-24}}\times 8000\times 6.023\times {{10}^{23}}}{56\times {{10}^{-3}}}=8\times {{10}^{5}}A/m\]You need to login to perform this action.
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