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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the effect of feedback on output resistance in an ideal situation?
π‘ Hint: Consider what happens with an ideal feedback network.
Question 2
Easy
Define the feedback factor (Ξ²) in your own words.
π‘ Hint: Think about how feedback influences circuit behavior.
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 output resistance in an ideal feedback system?
- 0 Ohms
- Infinity
- Equal to input resistance
π‘ Hint: Think about how feedback works in circuit theory.
Question 2
True or False: Negative feedback always increases gain.
- True
- False
π‘ Hint: Consider the trade-off between stability and amplification.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A voltage amplifier has an open-loop gain of 150 and a feedback factor of 0.05. Calculate the closed-loop gain and the output resistance given an input resistance of 2k Ohms and a feedback resistance of 1k Ohms.
π‘ Hint: Use formulas for gain and resistance considering feedback components.
Question 2
Design a feedback circuit for a trans-conductance amplifier that ensures stable output characteristics with finite input resistance. What design modifications would you propose to maintain performance?
π‘ Hint: Think about how you can balance input/output resistances effectively.
Challenge and get performance evaluation