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 is a common emitter amplifier?
💡 Hint: Think about how the emitter connects to the circuit.
Question 2
Easy
What does the beta (β) value represent in a transistor?
💡 Hint: It's a ratio related to currents through the transistor.
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 significance of matching transistors in a current mirror?
- They improve efficiency
- They ensure identical current
- They reduce size
💡 Hint: Think about what happens if transistors behave differently.
Question 2
Is the voltage gain of the amplifier calculated using Ohm's law?
- True
- False
💡 Hint: Remember the equations for gain involve parameters of the active devices.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a collector current I_C of 2.2 mA and β of 250, calculate the base current and describe its significance in the operation of the amplifier.
💡 Hint: Focus on the relationship between collector and base currents.
Question 2
Design a current mirror circuit with an output voltage drop of 0.6V. If the supply voltage is 12V, calculate the maximum collector current sustainable in your design.
💡 Hint: Apply Ohm's law tailored to the output specifications.
Challenge and get performance evaluation