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