Practice Department Of Electronics And Electrical Communication Engineering (41.1.2)

Practice: Department of Electronics and Electrical Communication Engineering

Lesson 41.1.2Frequency Response of CE/CS Amplifiers Considering High Frequency Models of BJT and MOSFET (Part B)

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8 questions

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6 sample questions

Question 1.
What does the input resistance in an amplifier indicate?
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Think about how it relates to the input signal.
Question 2.
What is the significance of a capacitor in an amplifier circuit?
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Consider their role in coupling.
3Question 3.
What is the primary effect of increased input capacitance in an amplifier?
- Decreases output resistance
- Lowers cutoff frequency
- Increases gain
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Think about how capacitors behave with frequency.
4Question 4.
True or False: A zero in a transfer function indicates a frequency where the output is zero.
- True
- False
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Reflect on the definition of a zero.
Question 5.
Design a CE amplifier with R1 = 1kΩ, C3 = 10μF, and calculate the expected cutoff frequency given load capacitance of 100pF.
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Consider how each component value interplays to amplify the desired frequencies.
Question 6.
Given R2 = 2kΩ and a given complex RC network, derive the overall transfer function considering various capacitor sizes.
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Focus on how different capacitor values affect equivalent resistance.

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