Practice Feedback System Input Resistance (92.1) - Feedback system (Part-C)
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Feedback System Input Resistance

Practice - Feedback System Input Resistance

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is input resistance?

💡 Hint: Think about how it affects the input signal.

Question 2 Easy

Define load-affected transimpedance.

💡 Hint: Focus on the relationship with voltage.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the formula for calculating total resistance in parallel?

R_total = R1 + R2
1/R_total = 1/R1 + 1/R2
R_total = R1 * R2

💡 Hint: Remember how currents work in parallel.

Question 2

The feedback factor (β) should be adjusted during calculations. (True/False)

True
False

💡 Hint: Think about why consistency matters.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Design a feedback system using three resistances: R1 (200Ω), R2 (100Ω), and R3 (50Ω). Calculate the input resistance.

💡 Hint: Apply the parallel resistance formula step-by-step.

Challenge 2 Hard

Explain the implications of increasing the load impedance on the input resistance of the system.

💡 Hint: Analyze how load changes affect current through the system.

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