Practice Solutions to Instability Problems - 25.3.3 | 25. Common Emitter Amplifier (Part B) | Analog Electronic Circuits - Vol 1
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What effect does an increase in beta have on the collector current?

💡 Hint: Consider how beta relates to collector and base currents.

Question 2

Easy

What is the main purpose of an emitter resistor in a CE amplifier?

💡 Hint: Think about negative feedback mechanisms.

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 the Q-point if beta increases significantly?

  • It remains stable
  • It shifts towards saturation
  • It cannot be determined

💡 Hint: Consider the relationship between beta and collector current.

Question 2

True or False: A bypass capacitor allows DC signals to pass while blocking AC signals.

  • True
  • False

💡 Hint: Think about the function of a bypass capacitor.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given a CE amplifier with known parameters, calculate the impact on the Q-point if the temperature changes, and reevaluate the optimal design with an emitter resistor.

💡 Hint: Use characteristic curves and stability diagrams for support.

Question 2

Critique a given amplifier design for susceptibility to thermal runaway, providing modifications.

💡 Hint: Look at both the thermal effects and the AC analysis of the amplifier.

Challenge and get performance evaluation