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Q. No.A solenoid of length \(25~\text{cm}\) and radius \(2~\text{cm}\) has \(500\) turns and carries a current of \(15~\text{A}.\) If it is equivalent to a magnet of the same size and magnetisation \(\vec M\) (magnetic moment per unit volume), then \( |\vec M|\) is:
1. \(3\pi~\text{Am}^{-1}\)
2. \(30000\pi~\text{Am}^{-1}\)
3. \(300~\text{Am}^{-1}\)
4. \(30000~\text{Am}^{-1} \)
1. \(3\pi~\text{Am}^{-1}\)
2. \(30000\pi~\text{Am}^{-1}\)
3. \(300~\text{Am}^{-1}\)
4. \(30000~\text{Am}^{-1} \)
Subtopic: Â Magnetization & Magnetic Intensity |
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Level 3: 35%-60%
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