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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a current mirror, and why is it used in circuits?
💡 Hint: Think about current dependency in circuits.
Question 2
Easy
Explain the role of the K factor in a MOSFET current mirror.
💡 Hint: Reflect on how changes affect the output current.
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 does a current mirror help maintain in electronic circuits?
- Constant Voltage
- Constant Current
- Variable Current
💡 Hint: Think about the purpose of the current mirror.
Question 2
True or False: A higher K factor always guarantees better performance in a current mirror.
- True
- False
💡 Hint: Consider what else might impact performance.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A current mirror using N-channel MOSFETs has a reference current of 1 mA and a supply voltage of 15V. If K1 = 2 mA/V² and K2 = 8 mA/V², calculate the current output and the minimum voltage for transistor 2.
💡 Hint: Don't forget to take the threshold voltage into account.
Question 2
For a BJT current mirror with beta values of 150, discuss how the output current would vary if the base current loss is significant. How would you mitigate this in a design?
💡 Hint: Refer to the concepts we've discussed about current loss.
Challenge and get performance evaluation