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The characteristic equation of J-K flip-flop is ______________(a) Q(n+1)=JQ(n)+K’Q(n)(b) Q(n+1)=J’Q(n)+KQ'(n)(c) Q(n+1)=JQ'(n)+KQ(n)(d) Q(n+1)=JQ'(n)+K’Q(n)This question was posed to me in unit test.The origin of the question is Triggering of Flip Flops topic in chapter Flip-Flops of Digital Circuits

Answer»

Right option is (d) Q(N+1)=JQ'(n)+K’Q(n)

The best I can explain: A characteristic equation is needed when a specific gate requires a specific output in ORDER to satisfy the truth table. The characteristic equation of J-K flip-flop is given by: Q(n+1)=JQ'(n)+K’Q(n).



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