Preview of practice Finding Output Resistance (27.3.2) - Common Emitter Amplifier (contd.) (Part B)
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Finding Output Resistance

Practice - Finding Output Resistance

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does gm stand for in the context of amplifiers?

💡 Hint: Remember what controls the output based on input voltage changes.

Question 2 Easy

How does Re impact the gain of the amplifier?

💡 Hint: Think about the relationship between gain and additional resistance.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the impact of adding an emitter resistor on voltage gain?

Increases gain
Decreases gain
No effect

💡 Hint: Think about how resistors affect voltage drop across the circuit.

Question 2

True or False: Output resistance is unaffected by intra-circuit components.

True
False

💡 Hint: Consider how circuit topology affects overall resistance.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Design an amplifier with a specified gain of -20. If Rio = 10 kΩ, calculate the values for Re needed to maintain stability with varying β.

💡 Hint: Consider using ideal values for Rc initially, then assess Re.

Challenge 2 Hard

You need to analyze how varying Rc impacts overall gain while having Re fixed at 470 Ω. Discuss your findings.

💡 Hint: Employ the gain equation and examine how alterations affect the R factors.

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Reference links

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