Question

Two different logic gates giving output '0' for the inputs (0, 1) and then for (1, 0) are

• A. 'AND', 'NAND'
• B. 'NAND', 'NOR'
• C. 'OR', 'AND'
• D. 'NOR', 'AND'

Hint:

An easy way to check is remembering that both AND and NOR gates are highly restrictive. Mismatched inputs like $(0,1)$ fail the high conditions of both gates, dropping their outputs to '0' simultaneously!

Answer 1

The Correct Option is D

Let's test the behavior of the relevant standard logic gates for asymmetric mixed inputs $(0, 1)$ and $(1, 0)$: * AND Gate: The output of an AND gate is '1' only when both inputs are '1'. For mismatched inputs like $(0, 1)$ and $(1, 0)$, it outputs **0**. *

NOR Gate: A NOR gate outputs '1' only when both inputs are '0'. For any input combination containing a '1' like $(0, 1)$ and $(1, 0)$, it outputs **0**. Thus, both the AND and NOR gates yield an output of '0' for these specific input states.

Final Answer:
The two logic gates are 'NOR' and 'AND', which corresponds to option (D).