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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What role does negative feedback play in an amplifier?
💡 Hint: Think about the importance of stability versus gain.
Question 2
Easy
Define a pole in the context of feedback systems.
💡 Hint: Consider the s-plane and its significance.
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 on amplifier performance?
- Increases gain
- Enhances stability
- Reduces bandwidth
💡 Hint: Consider how feedback stabilizes systems.
Question 2
True or False: The positioning of poles has no effect on system stability.
- True
- False
💡 Hint: Think about the relationship between poles and system response.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
An amplifier has poles at 100Hz and 1KHz. If negative feedback is applied, how do the pole locations change? Derive the new poles using a given feedback factor of B2 = 0.1.
💡 Hint: Remember to apply the calculated feedback to each pole.
Question 2
If the loop gain of a feedback system is critically high, discuss the implications for phase margin and stability in terms of pole proximity to the imaginary axis.
💡 Hint: Relate this back to previous discussions on pole placement and stability.
Challenge and get performance evaluation