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  1. A JK flip flop has tpd= 12 ns. The largest modulus of a ripple counter using these flip flops and operating at 10 MHz is

    2. A.
    16
    B.
    64
    C.
    128
    D.
    256

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    Answer : Option D

    Explanation :

    Number of flip-flops = = 8.333 say 8

    Modulus = 28 = 256.

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