25.3.3 - Solutions to Instability Problems
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Practice Questions
Test your understanding with targeted questions
What effect does an increase in beta have on the collector current?
💡 Hint: Consider how beta relates to collector and base currents.
What is the main purpose of an emitter resistor in a CE amplifier?
💡 Hint: Think about negative feedback mechanisms.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What happens to the Q-point if beta increases significantly?
💡 Hint: Consider the relationship between beta and collector current.
True or False: A bypass capacitor allows DC signals to pass while blocking AC signals.
💡 Hint: Think about the function of a bypass capacitor.
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Challenge Problems
Push your limits with advanced challenges
Given a CE amplifier with known parameters, calculate the impact on the Q-point if the temperature changes, and reevaluate the optimal design with an emitter resistor.
💡 Hint: Use characteristic curves and stability diagrams for support.
Critique a given amplifier design for susceptibility to thermal runaway, providing modifications.
💡 Hint: Look at both the thermal effects and the AC analysis of the amplifier.
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