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To make a JK flip-flop change its output from 0 to 1 at the next clock pulse, the inputs J and K must be

2582Medium DSSSB TGT Computer Science 0 replies 1 views
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To make a JK flip-flop change its output from 0 to 1 at the next clock pulse, the inputs J and K must be

  • AJ = 0 or 1 (J is a don't care) and K = 1
  • BJ = 1 and K = 0 or 1 (K is a don't care)
  • CJ = 0 and K = 1
  • DJ = 1 and K = 1 only
Correct answer: B

Explanation

The excitation table of a JK flip-flop requires J = 1 for the transition 0 → 1, and K may be anything because J = 1, K = 0 sets the output and J = 1, K = 1 toggles it; the transition 1 → 0 needs K = 1 with J as a don't care.
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