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The functional difference between $SR$ flip-flop and $J$-$K$ flip-flop is that :

  1. $J$-$K$ flip-flop is faster than $SR$ flip-flop
  2. $J$-$K$ flip-flop has a feedback path
  3. $J$-$K$ flip-flop accepts both inputs $1$
  4. None of them
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3 Answers

Best answer
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c)JK flip-flop accepts both inputs 1,1 which is not accepted by SR (giving invalid output)
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The main difference between a JK flip-flop and an SR flip-flop is that in the JK flip-flop, both inputs can be HIGH. When both the J and K inputs are HIGH, the Q output is toggled, which means that the output alternates between HIGH and LOW. Thereby the invalid condition which occurs in the SR flipflop is eliminated.

Hence,Option(C)JK flip-flop accept both input 1.

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JK FF is SR FF + 2 latches, so definitely not faster than SR FF. Option A eliminated

Option B is incorrect, because every FF has that. It's not a "functional difference".

Option C is correct. It accepts 11 and toggles on it.

Answer:

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