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PhysicsNEET 2019Force on a moving charge and on a current

Moving Charges and Magnetism

Ionised hydrogen atoms and α\alpha-particles with the same momenta enter a constant magnetic field BB at right angles to it. The ratio of the radii of their circular paths rH:rαr_H : r_\alpha will be:

  1. A.2:12:1✓
  2. B.1:21:2
  3. C.4:14:1
  4. D.1:41:4

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