Which gate is represented by the following truth table?

2021

Which gate is represented by the following truth table?

image.png

  1. A.

    OR

  2. B.

    AND

  3. C.

    XOR

  4. D.

    NOT

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Show answer & explanation

Correct answer: A

To identify the logic gate from the truth table, compare the given inputs and outputs with the standard behavior of common logic gates. Step 1: Analyze the truth table. - When A = 0 and B = 0, Output = 0. - When A = 0 and B = 1, Output = 1. - When A = 1 and B = 0, Output = 1. - When A = 1 and B = 1, Output = 1. Step 2: Compare with OR gate. - OR gate output is 1 if at least one input is 1. - This matches the given truth table. Step 3: Compare with AND gate. - AND gate output is 1 only when both inputs are 1. - This does not match the given truth table. Step 4: Compare with XOR gate. - XOR gate output is 1 when inputs are different. - This does not match the given truth table. Step 5: Consider NOT gate. - NOT gate has only one input. - This truth table has two inputs, so it cannot be a NOT gate. Conclusion: The truth table matches the behavior of an OR gate.

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