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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the formula for calculating differential gain (A_d)?
💡 Hint: Remember that g_m involves collector current.
Question 2
Easy
Define Common Mode Gain (A_cm)
💡 Hint: Think of how the amplifier reacts to equal inputs.
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 does differential gain (A_d) measure in an amplifier?
- The output for common-mode inputs
- The output for differential inputs
- Signal noise rejection
💡 Hint: Think about how the amplifier responds to differing signals.
Question 2
True or False: A higher common-mode gain (A_cm) is desirable.
- True
- False
💡 Hint: Consider what happens to the output with identical inputs.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A BJT amplifier has R_C = 4.7 kΩ, and I_CQ = 0.5 mA. Calculate A_d, A_cm for R_E = 100 kΩ, and finally CMRR.
💡 Hint: Break it down step by step, starting with the individual calculations.
Question 2
If you encounter saturation in your amplifier, how would you analyze the linearity and applicable range based on ICMR?
💡 Hint: Think practically about typical signal voltages that could input past these limits.
Challenge and get performance evaluation