Question

Find Y & Z in the following logic circuit:

• A. \(Y=1, Z=1\)
• B. \(Y=0, Z=1\)
• C. \(Y=1, Z=0\)
• D. \(Y=0, Z=0\)

Hint:

Always simplify logic circuits step-by-step from left to right using basic gate rules.

Answer 1

The Correct Option is A

Step 1: Fixed input states.
The circuit receives predetermined 0 and 1 signals.

Step 2: First-level gates.
AND gate: 0·1 = 0; OR gate: 0+1 = 1.

Step 3: Intermediate OR gate.
Combines previous outputs to give 1.

Step 4: Final output gates.
Top OR: Z = 1; bottom AND: Y = 1.

Step 5: Logic consistency.
All intermediate paths confirm the outputs.

Step 6: Conclusion.
Y = 1, Z = 1.