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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define voltage gain.
💡 Hint: Think about how we measure output relative to input.
Question 2
Easy
What does low input impedance often lead to?
💡 Hint: Recall how input resistance can affect signal quality.
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 is the formula for voltage gain in a common base amplifier?
- V_out / V_in
- I_out / I_in
- R_out / R_in
💡 Hint: Think about the definition of voltage gain.
Question 2
True or False: An increase in input impedance generally increases voltage gain.
- True
- False
💡 Hint: Consider how input impedance affects the loading of the signal source.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
In a common base amplifier, if R_s is increased to 20K Ohm and R_C is 5K Ohm, analyze the trade-off between gain and bandwidth.
💡 Hint: Reflect on how higher R_s would change our calculated voltage gain.
Question 2
For an amplifier with a transconductance of 40 mS and output resistance of 10K Ohm, calculate the output voltage if input voltage is 0.1V.
💡 Hint: Analyze the relations among transconductance, resistance, and voltage gain.
Challenge and get performance evaluation