33.5.6 - Voltage Model
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Practice Questions
Test your understanding with targeted questions
What is the formula for calculating the voltage gain in a common source amplifier?
💡 Hint: Recall the roles of g_m and R_D in the formula.
What does g_m represent in the context of amplifiers?
💡 Hint: Think about how sensitive the amplifier is to input voltage.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the voltage gain (A) represent in an amplifier?
💡 Hint: Think about how much the amplifier amplifies the signal.
True or False: Parasitic capacitance increases the effective input capacitance according to the Miller Effect.
💡 Hint: Consider how feedback can modify circuit variables.
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Challenge Problems
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A Common Source Amplifier has a transconductance of 2mA/V, a drain resistance of 2.5kΩ, and an input resistance of 1kΩ. Calculate the voltage gain and discuss how changing load resistance affects output voltage.
💡 Hint: Think about the interactions between resistances at the output.
What are the implications of significant parasitic capacitance at the input of a high frequency Common Source Amplifier? Provide a detailed explanation.
💡 Hint: Link your explanation to feedback and its effects on capacitance in amplifiers.
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