MCQSeries Questions & Answers
21. How many flip-flop are needed to divide the input frequency by 64 ?
(a) 2
(b) 4
(c) 6
(d) 8
22. Which one flip flop has an invalid output state.
(a) JK flip flop
(b) T flip flop
(c) SR flip flop
(d) D flip flop
23. The number of flip-flop required in a decade counter is :
(a) 3
(b) 5
(c) 7
(d) 9
24. A flip-flop circuit can be used for :
(a) Scaling
(b) Counting
(c) Rectification
(d) Demodulation
25. The functional difference between both inputs of an SR flip-flop is that JK flip-flop :
(a) Is a faster than SR flip-flop
(b) has a feed back path
(c) accepts both inputs 1
(d) does not require external clock
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