43.5.2 - Upper Cutoff Frequency Considerations
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Practice Questions
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Define cascading in amplifier circuits.
💡 Hint: Think about why we combine amplifiers.
What is the loading effect?
💡 Hint: Consider how amplifiers interact when linked.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the main purpose of cascading amplifiers?
💡 Hint: Think about what cascading means in amplifier theory.
Does loading affect the upper cutoff frequency in cascaded amplifiers?
💡 Hint: Think about how two stages alter frequency response.
1 more question available
Challenge Problems
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You have two CE amplifiers with gains of 20 and 30 dB, respectively. If their loading effect leads to a reduction factor of 0.5, what is the overall gain in dB?
💡 Hint: Remember how to convert gain from dB and back.
If the upper cutoff frequency of a cascaded amplifier system is determined to be 25 kHz due to loading effects, but you desire it to be 50 kHz. What adjustments could be suggested?
💡 Hint: Consider the role of buffering and redesigning.
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