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Two cylindrical rods of uniform cross-se...

Two cylindrical rods of uniform cross-section area `A` and `2A`, having free electrons per unit volume `2n` and `n` respectively are joined in series. A current `I` flows through them in steady state. Then the ratio of drift velocity of free electron in left rod to drift velocity of electron in the
right rod is `((v_(L))/(v_(R)))` is

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