Preview of practice Higher Frequency Effects On Bjt (25.2.3) - Common Emitter Amplifier (Part B)
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Higher Frequency Effects on BJT

Practice - Higher Frequency Effects on BJT

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the small signal model used for?

💡 Hint: Think about AC signals and their effects on DC circuits.

Question 2 Easy

Name the two parasitic capacitances in BJTs.

💡 Hint: Consider the connections of the transistor terminals.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does the small signal model assume about DC signals?

They are zero
They are large
They are fixed

💡 Hint: Consider the implications of 'small signal' analysis.

Question 2

True or False: Parasitic capacitances have no effect at low frequencies.

True
False

💡 Hint: How do capacitances influence frequencies?

3 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Design a Common Emitter amplifier circuit that includes measures to handle potential thermal runaway issues. Discuss what elements will enhance stability.

💡 Hint: Think about how feedback works in stabilizing circuits.

Challenge 2 Hard

If a BJT has an Early voltage of 100V and a collector-emitter voltage of 10V, calculate how the output current might change when the voltage increases to 20V.

💡 Hint: Refer to the changes in collector current with respect to V_ce variations.

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