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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What happens when the gate voltage becomes more negative in an n-channel JFET?
💡 Hint: Think about what a wider depletion means for current flow.
Question 2
Easy
Define pinch-off voltage.
💡 Hint: What signifies that the channel is no longer effective?
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 main function of the gate-source junction in a JFET?
- Controls drain current
- Acts as a switch
- Amplifies signals
💡 Hint: Think about the role of voltage in this function.
Question 2
After reaching pinch-off, the drain current:
- True
- False
💡 Hint: Recall what happens at the saturation point.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If a JFET has IDSS of 20 mA, and VGS(off) of -6V, calculate the drain current when VGS is -3V.
💡 Hint: Substitute carefully into the equation to find ID.
Question 2
Explain the thermal stability advantages of JFETs over BJTs.
💡 Hint: Consider how each type of transistor uses current versus voltage.
Challenge and get performance evaluation