Practice Effect On Output Resistance (zoutf) (5.3.4) - Feedback Amplifiers and Stability
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Effect on Output Resistance (Zoutf)

Practice - Effect on Output Resistance (Zoutf)

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Practice Questions

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Question 1 Easy

What is the output resistance denoted as in amplifiers?

💡 Hint: It's an important parameter for amplifier performance.

Question 2 Easy

Name the two types of sampling methods discussed.

💡 Hint: Think about how feedback is applied.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does Zoutf represent in amplifier circuits?

Input resistance
Oscillation frequency
Output resistance

💡 Hint: Consider what happens at the amplifier's output.

Question 2

True or False: Feedback in voltage amplifiers typically decreases the output resistance.

True
False

💡 Hint: Think about the benefits of feedback.

1 more question available

Challenge Problems

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Challenge 1 Hard

An amplifier is designed with a feedback factor of 5 and an open-loop output resistance of 200 ohms. Calculate Zoutf for the voltage sampling method and explain what this means for the amplifier's performance.

💡 Hint: Use the voltage sampling formula.

Challenge 2 Hard

For a current sampling configuration with an initial output resistance of 300 ohms and a feedback factor of 3, what will be the output resistance after feedback is applied? Discuss the implications.

💡 Hint: Remember the use of the current sampling formula.

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