For a two input AND gate, the four entries are shown in the truth table. Identify the correct ones out of these (A, B = input, Y = output) (a) 1 and 2 only (b) 1, 2 and 3 only (c) 1, 3 and 4 only (d) 2 and 4 only

Answer: (b). AND output is 1 only when both inputs are 1. Entry 1: (0, 1) → 0 correct; entry 2: (1, 0) → 0 correct; entry 3: (1, 1) → 1 correct. Entry 4: (0, 0) → 1 is wrong (should be 0). So the answer is (b) 1, 2 and 3 only.

For a two input AND gate, the four entries are shown in the truth… | MHT CET 2021 (23 Sep, Shift 2)

Q115MHT CET 2021 · 23 SEP · SHIFT 2Easy

Logic Gates

For a two input AND gate, the four entries are shown in the truth table. Identify the correct ones out of these $(\mathrm{A}, \mathrm{B} =$ input, $\mathrm{Y} =$ output)

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Answer: (b)

AND output is 1 only when both inputs are 1.
Entry 1: (0, 1) → 0 correct; entry 2: (1, 0) → 0 correct; entry 3: (1, 1) → 1 correct.
Entry 4: (0, 0) → 1 is wrong (should be 0).
So the answer is (b) 1, 2 and 3 only.

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Logic Gates question from MHT CET 2021 (23 Sep, Shift 2)

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