Multiple choice

Consider an RS flip-flop with both inputs set to 0. If a momentary ' 1' is applied at the input S, then the output

  1. Q will flip from 0 to 1

  2. Q will flip from 0 to 1 & then back to 0

  3. Q will flip from 1 to 0

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In an RS flip-flop with both inputs initially at 0 (hold state), applying a momentary 1 to the Set (S) input causes the Q output to become 1 and remain at 1 even after S returns to 0. The flip-flop 'remembers' this state. Option A correctly describes Q flipping from 0 to 1. The other options are incorrect: the output doesn't flip back automatically, doesn't go from 1 to 0, and the behavior is well-defined.

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