Question
Which of the following describes the function of a two-input AND gate?
Answer Options
- A) Output is high when either or both inputs are low
- B) Output is high only when both inputs are high
- C) Output is low when either or both inputs are high
- D) Output is low only when both inputs are high
Correct Answer: B
Explanation
An AND gate is a fundamental component in digital logic circuits. It performs a logical multiplication operation on its inputs. For a two-input gate, the output state is entirely dependent on the two input states.
The functional definition of an AND gate is that the output is high (logic 1) only when both inputs are high (logic 1). If either input is low (logic 0), the output will be low. This behavior is often summarized by the truth table where the only way to get a ‘true’ result is if both conditions are ‘true’.
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