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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What effect does negative feedback have on amplifier gain?
💡 Hint: Recall the formula for closed-loop gain.
Question 2
Easy
How does negative feedback influence bandwidth?
💡 Hint: Consider the gain-bandwidth product.
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 happens to closed-loop gain when negative feedback is applied?
- Increases
- Decreases
- Remains the same
💡 Hint: Refer to the core formula for closed-loop gain.
Question 2
True or False: Negative feedback always increases distortion.
- True
- False
💡 Hint: Think about what feedback does to error signals.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a feedback amplifier where you need a specific closed-loop gain of 50. Given that your open-loop gain (A) is 200,000, what feedback factor βF should you use?
💡 Hint: Substitute into the closed-loop gain equation and solve for βF.
Question 2
An op-amp circuit uses negative feedback and is subject to 0.5 mV RMS noise at input. What will be the output noise if the open-loop gain is 10,000 and βF is 0.01?
💡 Hint: Use the noise reduction formula provided.
Challenge and get performance evaluation