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The output of the op-amp is fed back to the non-inverting input to increase the gain.
The output of the op-amp is connected to the inverting input to stabilize the output voltage.
The output of the op-amp is isolated from both inputs to avoid oscillation.
The op-amp is used in an open-loop configuration to maximize output swing.
Understanding the Answer
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When the amplifier’s output is routed back to its minus input, it pulls that input toward the same voltage as the plus input. Other options are incorrect because Sending the output to the plus input creates a positive loop; Simply isolating the inputs removes any feedback, so the amplifier has no way to correct errors.
Key Concepts
Negative Feedback in Op-Amps
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Deep Dive: Negative Feedback in Op-Amps
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Definition
Negative feedback in op-amps involves connecting the output back to the input to achieve self-correction. In negative feedback, the ideal op-amp forces the inverting and non-inverting inputs to be equal, maintaining stability and precise control.
Topic Definition
Negative feedback in op-amps involves connecting the output back to the input to achieve self-correction. In negative feedback, the ideal op-amp forces the inverting and non-inverting inputs to be equal, maintaining stability and precise control.
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