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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does the drain current (I_DS) depend on in a MOSFET?
💡 Hint: Think of how the dimensions affect current flow.
Question 2
Easy
What does the term 'V_th' represent?
💡 Hint: It’s related to when the device starts to conduct.
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 happens to I_DS if V_DS increases significantly?
- It increases indefinitely
- It remains constant
- It drops immediately
💡 Hint: Consider the concept of pinch-off.
Question 2
True or False: The gate-source voltage must be above the threshold voltage for the MOSFET to conduct.
- True
- False
💡 Hint: Think about channel formation.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A MOSFET has a width of 15 um and a length of 5 um, a threshold voltage of 0.8V, and a gate-source voltage of 2.5V. Calculate the drain current assuming V_DS = 0.5V. Discuss the implications if V_DS were to increase significantly.
💡 Hint: Use I_DS ∝ (V_GS - V_th) * V_DS, remember to check against the thresholds.
Question 2
Analyze the operation of a MOSFET when the V_GS is less than V_th. What practical conclusions can be drawn regarding circuit design?
💡 Hint: Think about thresholds for effective conduction.
Challenge and get performance evaluation