Practice Voltage Gain And Current Gain Observations (99.7) - Applications of feedback in amplifier circuits (Part-C)

Practice: Voltage gain and Current gain observations

Lesson 99.7Applications of feedback in amplifier circuits (Part-C)

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9 questions

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6 sample questions

Question 1.
What is feedback in amplifier circuits?
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Think about what feedback does to the system.
Question 2.
Define trans-conductance.
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Consider how input voltage relates to output current.
3Question 3.
What is the consequence of feedback on voltage gain?
- It increases
- It decreases
- No effect
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Think about the impact of feedback on amplifier performance.
4Question 4.
True or False: Current gain changes when feedback is applied.
- True
- False
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Recall how current gain functions within feedback systems.
Question 5.
Given an amplifier with a voltage gain of 100, applying feedback reduces this by desensitization factor 5. Calculate the new voltage gain.
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Simplify the gain according to the factor.
Question 6.
You have a circuit where the input resistance increased from 1kΩ to 5kΩ after feedback. What does this indicate about the circuit?
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Consider the implications for the amplifier's performance with loading.

5 more questions in this section. Enroll free to practise them all.