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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does the small signal model represent?
💡 Hint: Think about linear approximations.
Question 2
Easy
Define transconductance in relation to MOSFETs.
💡 Hint: Consider its role in proportional changes.
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 small signal model of a MOSFET represented as?
- A current-controlled voltage source
- A voltage-controlled current source
- A resistor
💡 Hint: Think about how the MOSFET operates.
Question 2
Transconductance (gm) refers to the ratio of which quantities?
- Output voltage to input voltage
- Change in output current to change in input voltage
- Input voltage to output current
💡 Hint: Consider the formula for gm.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A MOSFET has a threshold voltage (Vth) of 0.7 V, and operates with ID of 10 mA at VGS = 3 V. Calculate its transconductance and its output current for a small signal VGS = 0.01 V.
💡 Hint: Use the transconductance formula and plug in the values carefully.
Question 2
Explain how the small signal model assists in determining the bandwidth of a MOSFET amplifier, given you're varying Vgs to analyze performance.
💡 Hint: Focus on gain response in relation to frequency adjustments.
Challenge and get performance evaluation