Flip-Flops - Technical MCQs

Q1:

Four J-K flip-flops are cascaded with their J-K inputs tied HIGH. If the input frequency (fin) to the first flip-flop is 32 kHz, the output frequency (fout) is ________.

A
1 kHz

B
2 kHz

C
4 kHz

D
16 kHz

ANS:B -

2 kHz

32/2=16:-first flip-flop

16/2=8:- second flip-flop

8/2=4:- third flip-flop

4/2=2:- fourth flip-flop