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 a common base amplifier do?
💡 Hint: Think about the configuration roles.
Question 2
Easy
Why is capacitor C_B important?
💡 Hint: Remember what happens at AC ground.
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
What is the impact of removing capacitor C_B on input resistance?
- Increases significantly
- Decreases
- Remains constant
💡 Hint: Think about how much voltage appears across different components.
Question 2
True or False: The voltage gain improves when C_B is removed.
- True
- False
💡 Hint: Reflect on the relationship to signal application.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a common base amplifier with a collector current of 0.5 mA and an early voltage of 50V, calculate the transconductance and describe its significance.
💡 Hint: Use standard formulae linking collector current and transconductance.
Question 2
Investigate how varying the input resistor affects the amplifier's overall gain without C_B. Discuss potential design considerations.
💡 Hint: Examine how resistances interact within the circuit.
Challenge and get performance evaluation