Practice Output Impedance With Source Resistance (47.4.4) - Common Collector and Common Drain Amplifiers (Contd.): Numerical Examples (Part A)

Practice: Output Impedance with Source Resistance

Lesson 47.4.4Common Collector and Common Drain 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 how the amplifier interfaces with the load.
Question 2.
What does transconductance (g_m) signify?
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Consider its role in operational efficiency.
3Question 3.
What does a high output impedance indicate?
- Better power transfer
- Increased loading effect
- Ideal for all loads
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Consider how it affects the load connected.
4Question 4.
Is the voltage gain of a common collector amplifier always close to unity?
- True
- False
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Think about the role of the common collector configuration.
Question 5.
Given a common collector amplifier with a collector current of 1 mA, and an early voltage of 50 V, calculate the output resistance.
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Relate your answer to the concept of output resistance associated with active devices.
Question 6.
Analyze the effect of introducing a 50 kOhm source resistance into a common collector configuration. How would the performance metrics change?
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Consider the interactions between source resistance and the amplifier's output.

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