Question: 1 9 . Pictured below is a circuit using a 4 0 8 1 chip plus other familiar components: What is a 4 0 8

19.Pictured below is a circuit using a 4081 chip plus other familiar components:
What is a 4081 chip?
How does one light the LED? Explain using "High" \& "Low" logics.
20.In the diagram above (Question 19):
What is the function of Q1?
What is the function of the \(150\Omega \) resistor?
21.The circuit in 19 is not functioning. What would you use to troubleshoot and what pins would you check for what level?
1 9 . Pictured below is a circuit using a 4 0 8 1

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