Practice Lecture – 59 (59.1.4) - Multi-Transistor Amplifiers (Contd.): Numerical Examples (Part B)

Practice: Lecture – 59

Lesson 59.1.4Multi-Transistor Amplifiers (Contd.): Numerical Examples (Part B)

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10 questions

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6 sample questions

Question 1.
What is the formula for voltage gain in a Common Source Amplifier?
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Recall the roles of g_m and the output resistance.
Question 2.
Define transconductance.
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It involves current and voltage changes.
3Question 3.
What is the transconductance of an amplifier essentially measuring?
- Input voltage variation
- Output current variation
- Signal amplification
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It relates to current responses in the circuit.
4Question 4.
True or False: Cascading a Common Source with a Common Drain stage will always increase the gain.
- True
- False
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Think about what properties a CD stage brings.
Question 5.
Design a multi-stage amplifier combining CS and CD stages with specified gains of 5 and 1 respectively. Calculate the overall gain and the upper cut-off frequency assuming appropriate values for R and C.
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Apply knowledge of cascading in amplifier designs.
Question 6.
Explain the impact of reducing the load capacitance on the upper cut-off frequency in a CS amplifier while maintaining all other components constant.
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Use the relationship from the upper cut-off frequency formula.

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