The ratio of the magnetic field at the centre of a current carrying circular wire and the…

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

1. \(\frac{\pi^{2}}{4 \sqrt{2}}\)
2. \(\frac{\pi^{2}}{8 \sqrt{2}}\)
3. \(\frac{\pi}{2 \sqrt{2}}\)
4. \(\frac{1}{4 \sqrt{2}}\)

Answer

(B) ^ 2 8 2

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