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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the role of a current mirror in an amplifier?
π‘ Hint: Think about how it stabilizes current.
Question 2
Easy
What is the value of Beta used in our calculations?
π‘ Hint: Recall the assumed values given in the section.
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 a current mirror primarily used for in amplifier circuits?
- To amplify voltage
- To maintain constant current
- To increase beta
π‘ Hint: Think about the role of steady current in amplifier operations.
Question 2
If the collector current is 2 mA, what is the base current for a Beta of 100?
π‘ Hint: Use the relationship between collector and base currents to solve.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Suppose Beta of transistor-3 and transistor-4 increased to 250, calculate the new collector currents and predict the impact on output voltage.
π‘ Hint: Consider changes in current flow between mirrors.
Question 2
Design an amplifier circuit using a current mirror that can handle an input voltage of 1V and output a gain of 1000. What components are necessary?
π‘ Hint: Start with Ohm's Law and gain definitions.
Challenge and get performance evaluation