A) \[8.3\times {{10}^{6}}\]
B) \[3.0\]
C) \[1.2\times {{10}^{-7}}\]
D) \[3\times {{10}^{-}}^{6}\]
Correct Answer: B
Solution :
Intensity of magnetisation \[I=\frac{M}{V}=\frac{M}{mass/density}\] Given mass \[=1g={{10}^{-3}}kg\] and density \[=5g/c{{m}^{3}}=\frac{5\times {{10}^{-3}}kg}{{{({{10}^{-2}})}^{3}}{{m}^{3}}}\] \[=5\times {{10}^{3}}kg/{{m}^{3}}\] Hence, \[I=\frac{6\times {{10}^{-7}}\times 5\times {{10}^{3}}}{{{10}^{-3}}}\] \[=3A/m\]You need to login to perform this action.
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