29.2.2 - Input and Output Resistance
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Practice Questions
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What is the input resistance in a CE amplifier with a base resistance of 1 kΩ and emitter resistance of 1.3 kΩ?
💡 Hint: Use 1/(1/R_B + 1/r_π) for parallel resistance.
Define output resistance in common emitter amplifiers.
💡 Hint: Think about what influences the current delivery at the output.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the input resistance of a Common Emitter Amplifier typically reflect?
💡 Hint: Think about its interaction with the input source.
True or False: A higher output resistance improves power transfer to the next stage.
💡 Hint: Remember the relationship between resistance and current flow.
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Challenge Problems
Push your limits with advanced challenges
Design a common emitter amplifier circuit to achieve a specific voltage gain of -100. Discuss how input and output resistance considerations influence your design choices.
💡 Hint: Relate gain to collector resistance and transconductance.
A specific amp design requires high input resistance and low output resistance. Propose a configuration and justify your choice.
💡 Hint: Think about how buffers function in circuit designs.
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