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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does a small signal model represent?
💡 Hint: Consider the operating conditions when small changes occur.
Question 2
Easy
Define transconductance.
💡 Hint: Think about input-output relationships in circuits.
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 role of transconductance in small signal models?
- Predicts output current based on input voltage
- Measures resistance
- Defines capacitance
💡 Hint: Think about the direct relationship between input and output in circuits.
Question 2
True or False: The small signal model can only be used for low frequency circuits.
- True
- False
💡 Hint: Consider how circuit strategies adapt over different frequency ranges.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
In a MOSFET circuit with a V_gs of 2V and a load resistance of 3 kΩ, if gₘ is 1.5 mA/V, calculate V_out for a small signal input of 0.5 V.
💡 Hint: Use the basic gain formula which combines resistance and transconductance.
Question 2
Explain how the introduction of capacitances affects the small signal model at high frequencies. Provide a circuit example.
💡 Hint: Think about the implications of capacitance on signal timing and circuit response.
Challenge and get performance evaluation