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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does the emitter resistor R_E do in a common emitter amplifier?
π‘ Hint: Think about what happens to our circuit under changing conditions.
Question 2
Easy
How is the voltage gain A affected by increasing R_E?
π‘ Hint: Recall the gain formula.
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
Increasing the emitter resistor R_E typically results in what effect on voltage gain A?
- Increases A
- Decreases A
- No effect
π‘ Hint: Think about how R_E plays a role in the gain equation.
Question 2
True or False: The larger the emitter resistor R_E, the more sensitive the amplifier becomes to beta variations.
- True
- False
π‘ Hint: Remember the role of R_E.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a common-emitter amplifier that satisfies a voltage gain of -10 while ensuring that it remains stable. Assume Ξ² = 100.
π‘ Hint: Calculate g_m and ensure all component interactions are balanced.
Question 2
Discuss the implications of lowering R_E to improve gain while keeping the same operational point and how it impacts low-frequency response.
π‘ Hint: Maintain focus on RC time constants while discussing this effect.
Challenge and get performance evaluation