Two NOT gates invert A and B individually and their results enter a NOR gate. Which gate is equivalent?
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Question

Two NOT gates invert A and B individually and their results enter a NOR gate. Which gate is equivalent?

G1 Physics · Accepted Answer

NOR output Y = NOT(A̅ + B̅). By De Morgan’s law NOT(A̅ + B̅) = A·B. Thus the composite circuit is an AND gate. Final answer: Option C.