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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the formula for closed-loop gain (A_f) with negative feedback?
💡 Hint: Think about how feedback interacts with the open-loop gain.
Question 2
Easy
How does negative feedback affect input resistance?
💡 Hint: Consider the advantages of higher input resistance.
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 effect does negative feedback have on the gain of an amplifier?
- Increases gain
- Decreases gain
- No effect on gain
💡 Hint: Think about the purpose of using feedback in designing amplifiers.
Question 2
True or False: Negative feedback increases the distortion in an amplifier.
- True
- False
💡 Hint: Consider how feedback affects the linearity of an amplifier.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a feedback network for a hypothetical amplifier with an open-loop gain of 3000 and calculate the resulting closed-loop gain if the feedback factor is set to 0.02.
💡 Hint: Don't forget to apply the formula carefully to find A_f.
Question 2
If the input resistance without feedback is measured as 2200Ω and the closed-loop gain is 10. If the open-loop gain is 200, calculate the new input resistance with feedback.
💡 Hint: The feedback factor here is crucial in adjusting the resistance.
Challenge and get performance evaluation