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Two J-K flip-flops with their J-K inputs tied HIGH are cascaded to be used as counters. After four input clock pulses, the binary count is ________(a) 00(b) 11(c) 01(d) 10I have been asked this question in my homework.The origin of the question is Flip Flops in division Flip-Flops of Digital Circuits

Answer»

The correct option is (a) 00

The explanation: EVERY O/P repeats after its MOD. Here mod is 4 (because 2 flip-flops are USED. So mod = 2^2 = 4). So after 4 clock PULSES the O/P repeats i.e. 00.



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