Practice Numerical Example: Fixed Bias (jfet) (2.7.2) - Amplifier Models and BJT/FET BiasingV
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Numerical Example: Fixed Bias (JFET)

Practice - Numerical Example: Fixed Bias (JFET)

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does the acronym JFET stand for?

💡 Hint: Think about the type of transistor and its structure.

Question 2 Easy

What is the significance of the pinch-off voltage (VP)?

💡 Hint: Consider what happens to the current when VGS is adjusted.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does VP represent in a JFET?

Maximum drain current
Gate-source voltage at zero current
Threshold voltage

💡 Hint: Think about when the current stops changing.

Question 2

True or False: The fixed bias configuration allows for high stability.

True
False

💡 Hint: Consider how sensitive fixed biasing is to changes in temperature or materials.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A JFET circuit has VDD = 24V, RD = 10kΩ with IDSS = 20mA and VP = -6V. What is ID when VGS = -3V? Calculate VDS.

💡 Hint: Make sure to analyze if the JFET remains in the active region.

Challenge 2 Hard

Design a circuit using fixed bias for a JFET with IF (IDSS) = 15mA, VP = -4V, and demonstrate through calculations whether it maintains the desired current for VGS = -2.5V.

💡 Hint: Use the appropriate parameters in Shockley’s equation for this.

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Reference links

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