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Two metallic rings A and B identical in ...

Two metallic rings `A` and `B` identical in shape and size but having different resistivities `rho_(A)` and `rho_(B)` are kept on top of two idential solenoids as shown in the figure.When current `I` is switched on in both the solenoids in identical manner, the rings `A` and `B` jump to heights `h_(A)` and `h_(B)` respectively with `h_(A)` gt `h_(B)`. The possible relation(s) between their resistivities and their masses `m_(A)` and `m_(B)` is (are)

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