Practice Voltage Gain Calculation (51.1.5) - Common Base and Common Gate Amplifiers (Contd.) : Numerical Examples (Part A)

Practice: Voltage Gain Calculation

Lesson 51.1.5Common Base and Common Gate Amplifiers (Contd.) : Numerical Examples (Part A)

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9 questions

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6 sample questions

Question 1.
Define voltage gain.
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Think about how we measure output relative to input.
Question 2.
What does low input impedance often lead to?
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Recall how input resistance can affect signal quality.
3Question 3.
What is the formula for voltage gain in a common base amplifier?
- V_out / V_in
- I_out / I_in
- R_out / R_in
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Think about the definition of voltage gain.
4Question 4.
True or False: An increase in input impedance generally increases voltage gain.
- True
- False
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Consider how input impedance affects the loading of the signal source.
Question 5.
In a common base amplifier, if R_s is increased to 20K Ohm and R_C is 5K Ohm, analyze the trade-off between gain and bandwidth.
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Reflect on how higher R_s would change our calculated voltage gain.
Question 6.
For an amplifier with a transconductance of 40 mS and output resistance of 10K Ohm, calculate the output voltage if input voltage is 0.1V.
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Analyze the relations among transconductance, resistance, and voltage gain.

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