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
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the primary function of a current mirror?
💡 Hint: Think of 'mirroring' a current signal.
Question 2
Easy
What is one advantage of the Wilson current mirror?
💡 Hint: Consider how feedback might play a role.
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 purpose of a Wilson current mirror?
- To increase output current
- To enhance output resistance
- To decrease voltage across the output
💡 Hint: Think about the advantages of having a higher output resistance.
Question 2
True or False: The Widlar current mirror can generate smaller output currents than the reference current.
- True
- False
💡 Hint: Consider what modifications are made to achieve lower outputs.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a current mirror circuit using the Wilson topology. Given V_CC=10V, calculate the minimum collector-emitter voltage required to keep Q2 in the active region.
💡 Hint: Consider both V_BE and the saturation voltage.
Question 2
If a Widlar current mirror is set with I_ref=100uA and R_E=1k ohm, calculate the expected output current.
💡 Hint: Focus on how V_T relates to circuit functioning in current mirrors.
Challenge and get performance evaluation