Practice Numerical Example Analysis (99.6) - Applications of feedback in amplifier circuits (Part-C)

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6 sample questions

Question 1.
Define feedback in your own words.
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Think about how an amplifier uses its output to influence its input.
Question 2.
What is trans-conductance?
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Consider how a transistor modulates current.
3Question 3.
What effect does feedback have on voltage gain?
- Increases it
- Reduces it
- No effect
- Doubles it
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Consider how feedback influences stability.
4Question 4.
True or False: Feedback always increases the gain of an amplifier.
- True
- False
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Remember the trade-offs involved with feedback mechanisms.
Question 5.
Calculate the new voltage gain of an amplifier if the input resistance increases by a factor of 5 and the output resistance decreases.
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Consider how the new input affects the output ratio.
Question 6.
Design a feedback circuit that maintains stable output current despite varying input conditions. Specify component values.
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Focus on resistors in feedback paths.

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