A logic gate circuit has two inputs A and B and output Y. The voltage waveforms of $\mathrm{A}, \mathrm{B}$ and Y are shown below The logic gate circuit is

JEE Main · 2022 · 27 Jul 2022 · Shift 1 · Semiconductors

A logic gate circuit has two inputs A and B and output Y. The voltage waveforms of

A, B

and Y are shown below

The logic gate circuit is

(A)AND gate✓ Correct
(B)OR gate
(C)NOR gate
(D)NAND gate

Answer: (A)

Solution

From the waveforms, construct the truth table: when A=0, B=0 → Y=0; A=1, B=1 → Y=1; A=0, B=1 → Y=0; A=1, B=0 → Y=0. This matches the AND gate truth table where output is 1 only when both inputs are 1.

JEE Main · 2022 · 27 Jul 2022 · Shift 1 · Single correct option

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