42.2.6 - Upper and Lower Cutoff Frequencies in Common Source Amplifier
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Practice Questions
Test your understanding with targeted questions
Define cutoff frequency in your own words.
💡 Hint: Think about where amp signals start losing strength.
What is the purpose of Miller's Theorem?
💡 Hint: What can you use to make complex circuits easier to analyze?
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for calculating the lower cutoff frequency?
💡 Hint: Think about how frequency interacts with resistance and capacitance.
True or False: The upper cutoff frequency is influenced by the input capacitance.
💡 Hint: Consider which components play roles at higher frequencies.
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Challenge Problems
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A common source amplifier has a lower cutoff frequency of 10 Hz and an upper cutoff frequency of 450 kHz. Given a load capacitance of 10 pF, what would happen to the upper cutoff frequency if this capacitance is increased to 100 pF?
💡 Hint: Consider how higher capacitance affects the circuit's impedance.
Discuss how design choices in component values impact the overall frequency response of an amplifier.
💡 Hint: Think about what happens when you change resistances and capacitances in the context of frequency.
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