A thin circular wire carrying a current I has a magnetic moment M. The shape of the wire…

Physics · JEE Advanced · NTA Exams — Magnetic Effects of Current and Magnetism

1. M
2. \(\frac{4}{\pi^{2}} \mathrm{M}\)
3. \(\frac{4}{\pi} \mathrm{M}\)
4. \(\frac{\pi}{4} \mathrm{M}\)

Answer

(D) 4 M

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