An AND gate is checked for operation and the following readings are taken on the gate: input A = 0.2 V, input B = 4.5 V, input C = 0.4 V, output = 4.9 V. What might be wrong with the gate?
A) Input C is too high.
B) Nothing is wrong with the gate.
C) The output is too low: it should be 5 V.
D) The output is stuck high; the chip is bad.

Question

Quizplus · Accepted Answer

An AND gate outputs high only when all inputs are high. With inputs A and C being low, the output should be low, indicating the output is stuck high.

An AND Gate Is Checked for Operation and the Following