When does the output of a NOR gate =0?

Computer Studies

JAMB 2022

A. whenever 0 is present at input
B. only when all input =0
C. whenever 1 is present at input
D. only when all input =1.

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Correct Answer: Option C

Explanation

The NOR gate is a digital logic gate that implements logical NOR - it behaves according to the truth table to the right. A HIGH output (1) results if both the inputs to the gate are LOW (0); if one or both input is HIGH (1), a LOW output (0) results.

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