Which of the following gates do not give output 1 when both the inputs are 0?…

2025

Which of the following gates do not give output 1 when both the inputs are 0?
A. NAND gate
B. NOR gate
C. XOR gate
D. X-NOR gate
Choose the correct answer from the options given below:

  1. A.

    A, B Only

  2. B.

    B, C Only

  3. C.

    C, D Only

  4. D.

    C Only

Attempted by 1238 students.

Show answer & explanation

Correct answer: D

Check outputs for inputs (0,0):

  • NAND: AND(0,0) = 0 → NAND = 1.

  • NOR: OR(0,0) = 0 → NOR = 1.

  • XOR: XOR(0,0) = 0 → XOR = 0.

  • X-NOR: XNOR is the complement of XOR, so X-NOR(0,0) = 1.

Conclusion: Only the XOR gate does not give output 1 when both inputs are 0. Therefore choose the answer that indicates only the XOR gate.

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