An electron moving in a circular orbit of radius r makes n rotations per second. The…
Physics · Class 12 · CBSE — Moving Charges and Magnetism
An electron moving in a circular orbit of radius r makes n rotations per second. The magnetic field produced at the centre has magnitude:
- \(\frac{\mu_{0} n e}{2 r}\)
- zero
- \(\frac{\mu_{0} n^{2} e}{r}\)
- \(\frac{\mu_{0} n e}{2 \pi r}\)
Answer
(A) _ 0 n e 2 r
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