Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
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?
💡 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?
💡 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
💡 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
💡 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 β = 100.
💡 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.
💡 Hint: Maintain focus on RC time constants while discussing this effect.
Challenge and get performance evaluation