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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define differential mode operation.
💡 Hint: Consider what happens to both input signals in this mode.
Question 2
Easy
What is the purpose of small signal analysis?
💡 Hint: Think about how this technique helps in calculations.
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 purpose of a differential amplifier?
- To amplify a single signal
- To amplify the difference between two signals
- To reduce the amplitude of signals
💡 Hint: Think about what aspect of the signals is being measured.
Question 2
True or False: Common mode gain should be as high as possible in a differential amplifier.
- True
- False
💡 Hint: Reflect on the ideal characteristics of signal amplification.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A differential amplifier using BJTs has a transconductance of 30 mS and a load resistance of 1.5kΩ. What is its differential gain?
💡 Hint: Use the transconductance and load resistance to find the gain.
Question 2
If a differential amplifier's common mode gain is measured at 2 V/V, while its differential gain is 50 V/V, calculate the Common Mode Rejection Ratio (CMRR).
💡 Hint: Recall the formula for CMRR to calculate the answer.
Challenge and get performance evaluation