MHT CET Physics question
Three identical rings move with the same speed on a horizontal surface in a uniform horizontal magnetic field normal to the planes of the rings the first (A)slips without rolling, the second (B)rolls without slipping and the third rolls with slipping:
Answer: (B)
Solution
Each ring moves in its own plane in a uniform field normal to that plane, so the magnetic flux through it never changes and no net emf is induced in any ring (the rolling or slipping makes no difference);
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