Question

The state of flip flop when $Q = 0$ and $Q' = 1$

• A. Reset
• B. Set
• C. Trigger state
• D. Tristate

Hint:

State is always synonymous with the value of $Q$. $Q=0$ means Reset, $Q=1$ means Set.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Flip-flops are bistable multivibrators. The state of a flip-flop is always defined by the value of its primary output, $Q$.
Step 2: Detailed Explanation:
In digital electronics:
- If \( Q = 1 \), the flip-flop is in the SET state.
- If \( Q = 0 \), the flip-flop is in the RESET state (or clear state).
Since the question gives \( Q = 0 \), it is in the Reset state. $Q'$ is simply the complement of $Q$, so \( Q' = 1 \) confirms the state is valid.
Step 3: Final Answer:
The state is Reset.