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A metallic ring of radius a and resistance R is held fixed with its axis along a spatially uniform magnetic field whose magnitude is `B_(0)` sin `(omega t)`. Neglect gravity. Then,A. the current in the ring oscillates with a frequency of `2 omega` .B. the joule hearting loss in the ring is proportional to `a^(2)`,C. the force per unit length on the ring will be proportional to `B_(0)^(2)`.D. the net force on the ring is non-zero |
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Answer» Correct Answer - C |
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