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    A cylindrical wire of length L and radius r has a resistance R. The resistance of another wire of same material but of twice its length and twice its
    Question

    A cylindrical wire of length L and radius r has a resistance R. The resistance of another wire of same material but of twice its length and twice its radius is:

    A.

    R/2

    B.

    2R

    C.

    4R

    D.

    R

    Correct option is A



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