Question 1 - For the transistor in the circuit shown in Figure, assume β = 120. Design the circuit such that I_{CQ} = 0.15 mA and R_{TH} = 200kΩ. What is the value of V_{CEQ}?
Question 2 - (a) For the circuit shown in figure, design a bias-stable circuit such that I_{CQ} = 0.8mA and V_{CEQ} = 5V. Let β = 100.
(b) Using the result of part (a), determine the percentage change in I_{CQ} if β is in the range 75 ≤ β ≤ 150.
(c) Repeat parts (a) and (b) if R_{E} = 1 kΩ.
Question 3 - The dc load line and Q-point of the circuit in figure (a) are shown in figure (b). For the transistor, β = 120. Find R_{E}, R_{1}, and R_{2} such that the circuit is bias stable.
Question 4 - For the circuit in figure, let β = 100 and R_{E} = 3 kΩ. Design a bias-stable circuit such that V_{E} = 0.
Question 5 - Using a computer simulation, verify the result of given Example -
Consider the two circuits in figure. The parameters of each transistor are I_{S} = 5 x 10^{-16} A and β = 90. Determine V_{BB} in each circuit such that V_{CE} = 1.10V.