Question:
Which of the following is a Universal logic gate?
Which of the following is a Universal logic gate?
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Remember: NAND and NOR are the only universal gates.
Updated On: Jun 5, 2026
- AND
- OR
- NAND
- XOR
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The Correct Option is C
Solution and Explanation
Concept:
A universal gate is one that can be used to implement any Boolean function.
Step 1: Definition.
• Universal gates: NAND and NOR
Step 2: Check options.
• AND → not universal
• OR → not universal
• NAND → universal ✔
• XOR → not universal
Step 3: Why NAND?
• Can construct NOT, AND, OR using NAND
Step 4: Conclusion. \[ \boxed{(3)\ \text{NAND}} \]
Step 1: Definition.
• Universal gates: NAND and NOR
Step 2: Check options.
• AND → not universal
• OR → not universal
• NAND → universal ✔
• XOR → not universal
Step 3: Why NAND?
• Can construct NOT, AND, OR using NAND
Step 4: Conclusion. \[ \boxed{(3)\ \text{NAND}} \]
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