UTpaper

Free mock tests & test series

Question 188Asked in DSSSB TGT Computer Science, 24 Jun 2023, Shift 3 (4:30 PM)

For what minimum value of propagation delay in each FF will a 10-bit ripple counter skip a count when it is clocked at 10 MHz?

  1. A10 ns
  2. B25 ns
  3. C100 ns
  4. D50 ns
Show answerHide answer

Correct answer: (A) 10 ns

Explanation

The ripple counter fails when the total delay of 10 flip-flops reaches the clock period: 10 × t_pd = 1/10 MHz = 100 ns, so t_pd = 10 ns.

From DSSSB TGT Computer Science PYQ, 24 Jun 2023, Shift 3 (4:30 PM)

This is question 188 of DSSSB TGT Computer Science PYQ, 24 Jun 2023, Shift 3 (4:30 PM). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.