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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the primary purpose of feedback in amplifier circuits?
💡 Hint: Think about what happens when feedback is applied.
Question 2
Easy
Define trans-impedance.
💡 Hint: It relates output effects based on input actions.
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 main effect of negative feedback in amplifier design?
- Increases distortion
- Improves stability
- Reduces gain
💡 Hint: Consider how feedback mechanisms directly influence performance.
Question 2
True or False: The trans-impedance remains constant despite changes in circuit parameters once feedback is applied.
- True
- False
💡 Hint: Reflect on how feedback interacts with circuit parameters.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given an amplifier with a trans-impedance of 250 kΩ, and β of 3, calculate the new trans-impedance when feedback is applied.
💡 Hint: Use the trans-impedance formula involving feedback.
Question 2
Discuss how changing the value of feedback resistor affects the performance of a common emitter amplifier.
💡 Hint: Consider the balance between gain and stability.
Challenge and get performance evaluation