Two insulated rings, one of slightly smaller diameter than the other are suspended along their common diameter as shown. Initially the planes of the rings are mutually perpendicular. When a steady current is set up in each of them
  • A
    The two rings rotate into a common plane
  • B
    The inner ring oscillates about its initial position
  • C
    The inner ring stays stationary while the outer one moves into the plane of the inner ring
  • D
    The outer ring stays stationary while the inner one moves into the plane of the outer ring
IIT 1995, Easy
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