Learning Path
Question & Answer1
Understand Question2
Review Options3
Learn Explanation4
Explore TopicChoose the Best Answer
A
The output voltage becomes equal to the input voltage
B
The output stabilizes to a specific value determined by the feedback network
C
The gain of the op-amp increases significantly
D
The op-amp enters saturation mode
Understanding the Answer
Let's break down why this is correct
Answer
When an op‑amp is wired with negative feedback, the output changes in just the right amount to drive the voltage difference between its inputs toward zero. This means the output is effectively “locked in” to a value that satisfies the feedback network’s ratio, giving the circuit a well‑defined, linear gain. The feedback therefore suppresses distortion, limits the gain to a predictable value, and expands the bandwidth. For example, in an inverting amplifier with a 10 kΩ feedback resistor and a 10 kΩ input resistor, the output will be the negative of the input, scaled by the resistor ratio, because the feedback forces the inverting input to stay at virtual ground.
Detailed Explanation
When negative feedback is used, a fraction of the output is sent back to the input. Other options are incorrect because Some think the output just equals the input, but that ignores the feedback loop; Negative feedback actually reduces the effective gain, not increases it.
Key Concepts
Negative Feedback in Op-Amps
Stability in Control Systems
Op-Amp Gain
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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2
Question 2In a negative feedback configuration using an op-amp, what is the primary effect on the output voltage when the input voltage increases?
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3
Question 3Which of the following statements about negative feedback in operational amplifiers (op-amps) are true? (Select all that apply)
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4
Question 4Which of the following is a common application of negative feedback in operational amplifiers (op-amps)?
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5
Question 5In a negative feedback configuration using an op-amp, what is the primary effect on the output voltage when the input voltage increases?
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6
Question 6When an operational amplifier (op-amp) is configured with negative feedback, what is the primary effect observed at the output?
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7
Question 7Which of the following statements about negative feedback in operational amplifiers (op-amps) are true? (Select all that apply)
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8
Question 8In a negative feedback configuration using an op-amp, what is the primary effect on the output voltage when the input voltage increases?
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9
Question 9When an operational amplifier (op-amp) is configured with negative feedback, what is the primary effect observed at the output?
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10
Question 10Which of the following statements about negative feedback in operational amplifiers (op-amps) are true? (Select all that apply)
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