Learning Path
Question & Answer1
Understand Question2
Review Options3
Learn Explanation4
Explore TopicChoose the Best Answer
A
Voltage follower
B
Oscillator circuit
C
Signal generator
D
Digital circuit
Understanding the Answer
Let's break down why this is correct
Answer
Negative feedback is often used in op‑amps to set a precise, stable gain and to reduce distortion. By feeding a portion of the output back to the input in the opposite phase, the circuit automatically corrects any error between the desired and actual output. This technique produces linear amplifiers such as the inverting or non‑inverting amplifier, where the gain is simply the ratio of two resistors. For example, connecting two resistors in a classic inverting amplifier configuration gives a fixed gain of –R2/R1, and the negative feedback keeps the output at the correct level. Thus, using negative feedback is a common way to build accurate, low‑noise amplifiers.
Detailed Explanation
A voltage follower uses negative feedback to force the output to match the input. Other options are incorrect because Oscillators need positive feedback to keep the signal growing; Signal generators often rely on oscillators or other active circuits, not on negative feedback alone.
Key Concepts
Common applications
Topic
Negative Feedback in Op-Amps
Difficulty
easy level question
Cognitive Level
understand
Practice Similar Questions
Test your understanding with related questions
1
Question 1Which of the following is a common application of negative feedback in operational amplifiers (op-amps)?
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Question 2In an operational amplifier, how does negative feedback influence the output signal in common applications such as amplifiers and filters?
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Question 3An engineer is designing a circuit using an operational amplifier and decides to implement negative feedback. Which of the following scenarios best illustrates the concept of negative feedback in op-amps?
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Question 4Which of the following statements about negative feedback in operational amplifiers (op-amps) are true? (Select all that apply)
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Question 5Which of the following is a common application of negative feedback in operational amplifiers (op-amps)?
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Question 6In an operational amplifier, how does negative feedback influence the output signal in common applications such as amplifiers and filters?
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Question 7An engineer is designing a circuit using an operational amplifier and decides to implement negative feedback. Which of the following scenarios best illustrates the concept of negative feedback in op-amps?
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Question 8Which of the following statements about negative feedback in operational amplifiers (op-amps) are true? (Select all that apply)
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Question 9An engineer is designing a circuit using an operational amplifier and decides to implement negative feedback. Which of the following scenarios best illustrates the concept of negative feedback in op-amps?
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Question 10Which of the following statements about negative feedback in operational amplifiers (op-amps) are true? (Select all that apply)
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