Exam-style question
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A combinational circuit has inputs A and B and outputs F. The truth table is: A B | F: 0 0 | 0; 0 1 | 1; 1 0 | 1; 1 1 | 0. Which circuit implements this function?.
- A.XOR gate.
- B.XNOR gate.
- C.AND gate.
- D.OR gate.
Model answer
What a good answer should say
- XOR gate.
Explanation
Why this works
Formula/rule: XOR truth table. Substitution: F = A⊕B.
Working: XOR gate outputs 1 when inputs differ. Answer: XOR gate.
Conclusion: This circuit implements the given truth table.
Common mistake
No common mistake is linked to this question yet.