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JEE Main 2021 (17 Mar, Shift 1) · Logic Gates

Logic Gates question from JEE Main 2021 (17 Mar, Shift 1)

Q132JEE Main 2021 · 17 MAR · SHIFT 1Medium

Logic Gates

The output of the given combination gates represents:

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Answer: (c)

A NOR gate with both inputs joined acts as NOT, so the first two gates give $\bar{A}$ and $\bar{B}$ .
Middle NOR: $\overline{\bar{A} + \bar{B}} = AB$ .
Last NOR (as NOT): $Y = \overline{AB}$ .
So the answer is (c) NAND gate.

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