WAEC Computer Studies 2025 Objective — Question 14
Question 14 of 50 from the West African Examinations Council (WAEC) Computer Studies 2025 Objective paper, with the correct answer and a full explanation.
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Which one of the following statements is true about logic gates?
- A. The output of an AND gate is low if both inputs are high
- B. The output of an AND gate is high if either of the inputs is low
- C. The output of a NOT gate is high if the input is lowCorrect
- D. The output of an OR gate is low if both inputs are high
Explanation
A NOT gate inverts its input — if the input is low (0), the output is high (1).
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