Practice - Output Resistance (r_o)
Practice Questions
Test your understanding with targeted questions
What is output resistance and why is it important?
💡 Hint: Think about the reliability of current flow.
What is the formula for calculating r_o?
💡 Hint: Recall the components that make up r_o.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does r_o represent in a MOSFET?
💡 Hint: Think about resistance in the context of current flow.
Is a higher r_o typically better for MOSFET performance in stability?
💡 Hint: Consider how current and output voltage interact.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A designer is working on a circuit with a desired output resistance of 50 kΩ. If λ for their MOSFET is 0.02 V⁻¹, what I_D must they design for?
💡 Hint: Rearrange the formula carefully to isolate I_D.
Consider two MOSFETs with different λ values (0.04 V⁻¹ and 0.01 V⁻¹) but the same I_D (5 mA). Which will have a higher output resistance and why?
💡 Hint: Compare how changes in λ influence the calculation for r_o.
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Reference links
Supplementary resources to enhance your learning experience.