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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 about current redundancy in circuits.
Question 2
Easy
Name one type of transistor used in current mirrors.
💡 Hint: Consider common transistor types.
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 do?
- Provides different currents
- Mirrors output to match reference current
- Only works under DC conditions
💡 Hint: Consider what a mirror does!
Question 2
Is the small signal model applicable under AC signal conditions?
- True
- False
💡 Hint: Think about small variations.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a current mirror circuit using two BJTs to ensure that the collector currents match precisely within 5%. Explain how you would achieve this.
💡 Hint: Think about how temperature affects junction conductivity.
Question 2
Calculate the small signal output given a reference current of 1 mA and a transconductance of 10 mS in a MOSFET current mirror. What is the expected output current under a small AC signal?
💡 Hint: Use Ohm's and Kirchhoff's laws to analyze the circuit.
Challenge and get performance evaluation