MHT CET · Physics · Magnetic Properties of Matter
The magnetic moment product in a sample of 2 gram is \(8 \times 10^{-7} \mathrm{Am}^2\). If its density is \(4 \mathrm{~g} / \mathrm{cm}^3\) then the magnetization of the sample in \(\mathrm{Am}^{-1}\) is
- A 1.6
- B 1.8
- C 1.2
- D 1.4
Answer & Solution
Correct Answer
(A) 1.6
Step-by-step Solution
Detailed explanation
Volume of the sample \(V=\frac{\text { mass }}{\text { density }}=\frac{2}{4} \mathrm{~cm}^3=0.5 \times 10^{-6} \mathrm{~m}^3\)
\(\text { Magnetization }=\frac{\text { Megnetic moment }}{\text { Volume }}\) \(=\frac{8 \times x 10^{-7}}{0.5 \times 10^{-6}} \mathrm{~A} / \mathrm{m}=1.6 \mathrm{~A} / \mathrm{m}\)
\(\text { Magnetization }=\frac{\text { Megnetic moment }}{\text { Volume }}\) \(=\frac{8 \times x 10^{-7}}{0.5 \times 10^{-6}} \mathrm{~A} / \mathrm{m}=1.6 \mathrm{~A} / \mathrm{m}\)
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