Preview of practice Discussion On Small Signal Model (19.3.2) - Linearization of non - linear circuit containing BJT (Contd.)
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Discussion on Small Signal Model

Practice - Discussion on Small Signal Model

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Practice Questions

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Question 1 Easy

What does the Q-point represent in a BJT circuit?

💡 Hint: Consider what operating point means in the context of circuits.

Question 2 Easy

Define transconductance (gm).

💡 Hint: Think about the relationship between input voltage and output current.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the purpose of the small signal model?

To analyze only linear circuits
To linearize non-linear devices for easier analysis
To calculate power loss

💡 Hint: Think about what simplifications are needed for circuit analysis.

Question 2

True or False: The Q-point changes dynamically with signal processing.

True
False

💡 Hint: Consider if the biasing affects signal processing.

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Challenge Problems

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Challenge 1 Hard

Given a BJT with a collector current (Ic) of 1 mA and Early voltage (VA) of 50V, calculate the output conductance (go).

💡 Hint: Be sure to use the correct units in your calculation.

Challenge 2 Hard

A BJT has a transconductance of 5 mA/V and is connected to a load of 2 kΩ. What is the expected voltage gain?

💡 Hint: Remember the relationship for voltage gain calculation.

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Reference links

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