19.1.4 - Base to Emitter Resistance
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Practice Questions
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What is the base to emitter resistance in a BJT?
💡 Hint: Think about where the base current is going.
Define transconductance.
💡 Hint: How does this relate to current and voltage?
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the small signal model primarily used for?
💡 Hint: Think about why we need to simplify complex behaviors.
True or False: Transconductance is independent of the Q-point.
💡 Hint: Remember how parameters may change with operating conditions.
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Challenge Problems
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If a BJT circuit has a quiescent current of 1mA and the base-emitter voltage is 0.7V, calculate the transconductance and the base-emitter resistance.
💡 Hint: Recall how to derive these values from the definitions.
Discuss how changing the Q-point affects the linearity of the output. Include graphs to illustrate your answer.
💡 Hint: Visualize different Q-points on the I-V characteristics to see variations.
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