Practice - Measurement Without Feedback (Conceptual/Reference)
Practice Questions
Test your understanding with targeted questions
What is voltage gain in an amplifier?
💡 Hint: Think about how an amplifier boosts signals.
Why is high input resistance important?
💡 Hint: Consider how devices interact with each other.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for voltage gain?
💡 Hint: Recall the definition from our class.
True or False: High output resistance is ideal for driving loads.
💡 Hint: Think about energy transfer efficiency.
1 more question available
Challenge Problems
Push your limits with advanced challenges
An amplifier has a voltage gain of 80. If you input 0.25 V, what is the output voltage? If the input resistance is 20 kΩ and the output resistance is 100 Ω, discuss how these values affect your design approach.
💡 Hint: Use the gain formula first, then assess input/output resistance effects.
Evaluate a scenario where an amplifier’s input resistance is very low (e.g., 1 kΩ). Discuss the problems that could arise in a circuit with such characteristics without feedback measurements.
💡 Hint: Consider the interaction between the amplifier and the connected devices.
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Reference links
Supplementary resources to enhance your learning experience.