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Two insulated rings, one of a slighlty s...

Two insulated rings, one of a slighlty 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 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

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The correct Answer is:
A
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