JEE Main · 2022 · 28 Jun 2022 · Shift 1 · Semiconductors

In the following circuit, the correct relation between output (Y) and inputs A and B will be:

(A) $Y = A B$
(B) $Y = A + B$
(C) $Y = \overline{A B}$ ✓ Correct
(D) $Y = \overline{A + B}$

Answer: (C)

Solution

The circuit diagram shows a NAND gate. The truth table for a NAND gate is: when both inputs A and B are 1, output Y is 0; otherwise Y is 1. This corresponds to the Boolean expression

Y = \overline{A B}

. The answer is (C).

JEE Main · 2022 · 28 Jun 2022 · Shift 1 · Single correct option

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