Magnetic field at the centre of a circular coil of radius R due to i flowing through it…

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

1. \(\frac{8}{2}\)
2. \(\frac{8}{4}\)
3. \(\frac{\mathrm{E}}{\sqrt{\mathrm{~g}}}\)
4. \(\sqrt{8} B\)

Answer

(C) E ~g

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