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MHT CET 2025 (23 Apr, Shift 2) · Current Loop as a Magnetic Dipole

Current Loop as a Magnetic Dipole question from MHT CET 2025 (23 Apr, Shift 2)

Q20MHT CET 2025 · 23 APR · SHIFT 2Easy

Current Loop as a Magnetic Dipole

In hydrogen atom, an electron of charge 'e' revolves in an orbit of radius ' rr ' with speed ' vv '. The magnetic moment associated with electron is

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Answer: (b)

  1. I=eT=ev2πrI = \frac{e}{T} = \frac{ev}{2\pi r}
  2. μ=Iπr2=ev2πrπr2=evr2\mu = I\pi r^2 = \frac{ev}{2\pi r}\pi r^2 = \frac{evr}{2}
  3. So the answer is (b) evr2\frac{evr}{2}.
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