Practice Output Impedance Calculation (51.1.7) - Common Base and Common Gate Amplifiers (Contd.) : Numerical Examples (Part A)

Practice: Output Impedance Calculation

Lesson 51.1.7Common Base and Common Gate Amplifiers (Contd.) : Numerical Examples (Part A)

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10 questions

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6 sample questions

Question 1.
What is output impedance?
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Think about what connects to the output.
Question 2.
What does voltage gain indicate?
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It's a ratio of output voltage to input voltage.
3Question 3.
What is the output impedance of a common base amplifier affected by?
- Input impedance
- Load resistance
- Both A and B
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Consider how these two aspects interact in a circuit.
4Question 4.
True or False: A high output impedance is desirable in amplifiers.
- True
- False
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Think about power transfer.
Question 5.
You have a common base amplifier with a collector resistance of 4 kΩ, and the output resistance of the transistor is 60 kΩ. Calculate the output impedance and discuss its implications for circuit performance.
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Apply the parallel resistance formula.
Question 6.
Given an input capacitance of 15 pF and an output resistance of 2 kΩ, determine the upper cutoff frequency and analyze how it influences bandwidth.
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Convert pF to farads before calculations.

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