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Discussion :: Digital Electronics

  1. The output of a JK flipflop with asynchronous preset and clear inputs is '1'. The output can be changed to '0' with one of the following conditions
  2. A.
    By applying J = 0, K = 0 and using a clock
    B.
    By applying J = 1, K = 0 and using the clock
    C.
    By applying J = 1, K = 1 and using the clock
    D.
    By applying a synchronous preset input

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    Answer : Option C

    Explanation :

    Preset state of JK Flip-Flop =1 With J=1 K=1 and the clock next state will be complement of the present state


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