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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the function of a coupling capacitor in a common emitter amplifier?
π‘ Hint: Think about DC and AC signal interactions.
Question 2
Easy
Define quiescent point.
π‘ Hint: Consider what happens when signals are not applied.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What parameter directly influences the voltage gain of a common emitter amplifier?
- Supply Voltage
- Transconductance (gm)
- Emitter Current
π‘ Hint: Consider which values are multiplied to obtain gain.
Question 2
True or False: The quiescent point should be set to maximize output swing.
- True
- False
π‘ Hint: Think about balance in the output range.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a common emitter amplifier for a small audio application targeting a gain of 40. Given a power supply of 10V and a maximum power dissipation of 20mW, outline the steps to choose appropriate resistor values.
π‘ Hint: Remember that understanding gain and power dissipation involves balancing act between V, I, and RC.
Question 2
You need to design an amplifier circuit that uses a silicon BJT with Ξ² = 150. Calculate the necessary parameters if you want a quiescent current of 1mA, and discuss how the output swing will be affected by your choices.
π‘ Hint: Think about how the quiescent current and beta affect the biasing network.
Challenge and get performance evaluation