Practice Changes In Voltage Gain And Current Gain (99.5.1) - Applications of feedback in amplifier circuits (Part-C)

Practice: Changes in Voltage Gain and Current Gain

Lesson 99.5.1Applications of feedback in amplifier circuits (Part-C)

Practise this section

9 questions

Flashcard drill
4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
Describe what happens to the current gain when feedback is applied.
Show hintHide hint
Think about the balancing effects of feedback.
Question 2.
What happens to the voltage gain when feedback is used?
Show hintHide hint
Consider how one affects the other.
3Question 3.
What happens to current gain when feedback is applied?
- Increases
- Decreases
- Remains constant
Show hintHide hint
Think about balancing effects.
4Question 4.
True or False: Voltage gain decreases when feedback is applied.
- True
- False
Show hintHide hint
Consider the relationship with output resistance.
Question 5.
Given an amplifier with specified gain and resistance values, calculate the new trans-impedance when feedback is applied. Discuss the implications.
Show hintHide hint
Remember to factor in changes from the original values.
Question 6.
Analyze a circuit where voltage gain is increased while current gain decreases. Explain how feedback influences this situation.
Show hintHide hint
Consider both short- and long-term performance effects.

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