Practice Jfet Characteristics (3.5) - Junction Field Effect Transistors (JFETs)
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JFET Characteristics

Practice - JFET Characteristics

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the Ohmic region in JFET characteristics?

💡 Hint: Think about how the JFET interacts with small voltage.

Question 2 Easy

What happens to the drain current at V_GS(off)?

💡 Hint: Consider the effect of the cutoff voltage!

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What happens in the Ohmic region of a JFET?

Current is constant
Behaves like a variable resistor
Channel is closed

💡 Hint: Consider how the JFET reacts to low voltages.

Question 2

True or False: In the Saturation region, drain current increases indefinitely with V_DS.

True
False

💡 Hint: Think about what happens beyond a certain V_DS.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A JFET has I_DSS of 15 mA and V_GS(off) of -4V. Calculate the drain current at V_GS of -2V.

💡 Hint: Use Shockley’s equation and carefully handle the negatives.

Challenge 2 Hard

Discuss how varying V_GS affects I_D and how this impacts amplifier design using JFETs.

💡 Hint: Consider the advantages of using JFET in low signal applications.

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Reference links

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