Exam-style question
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Describe the role of negative feedback in an ideal operational amplifier.
Model answer
What a good answer should say
- Negative feedback reduces the gain of the operational amplifier and stabilizes its output.
- It allows for precise control of the output voltage by feeding a portion of the output back to the inverting input, which helps maintain linearity and prevents saturation.
Explanation
Why this works
This answer is strong because it clearly outlines the function of negative feedback in controlling the gain and stability of an op-amp. The question tests understanding of operational amplifier concepts, which is fundamental in electronics.
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