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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define the term transconductance as used in small-signal analysis.
💡 Hint: Think about how input voltage influences output current.
Question 2
Easy
What is the typical input impedance at the gate of a FET?
💡 Hint: Consider how the gate is designed regarding currents.
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 'transconductance' in FETs refer to?
- The resistance at the drain
- The change in input voltage
- The relationship between output current and input voltage
💡 Hint: Remember, it's all about control.
Question 2
True or False: The gate connection in a FET small-signal model allows current to pass.
- True
- False
💡 Hint: Think about what an open circuit means.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a JFET with V_P = -4V, I_D = 5mA, and V_GS_Q = -3V, calculate the transconductance.
💡 Hint: Recall the formula and pay attention to voltage values.
Question 2
Consider a MOSFET with k_n = 0.5 mA/V² and W/L = 2, if V_GS = 3V and V_th = 1V, find the output resistance if λ = 0.05 V⁻¹.
💡 Hint: You’ll first need I_D from transconductance calculations to fully understand how output resistance works.
Challenge and get performance evaluation