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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define Common-Mode Gain (A_cm).
💡 Hint: Think about what happens when the same voltage goes to both inputs.
Question 2
Easy
What does a low A_cm indicate in an amplifier?
💡 Hint: Remember, less output from common signals is more desired!
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 A_cm?
- The output due to differential input
- The output due to common input
- The input voltage
💡 Hint: Think about how the input signals relate to the output.
Question 2
True or False: A lower A_cm is preferable in differential amplifiers.
- True
- False
💡 Hint: Consider why rejection is critical in amplifying signals.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given the resistor values R_C = 2kΩ and R_E = 150kΩ, calculate the common-mode gain A_cm. Then discuss its engineering implications.
💡 Hint: Remember the formula and consider the effects of A_cm on circuit design.
Question 2
Why might common-mode gain deviate from the ideal of zero in practical circuits? Provide examples of real-world implications.
💡 Hint: Consider sources of variations and how they affect real-world performance.
Challenge and get performance evaluation