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Feedback resistor & gain of the opamp

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gokul34

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For both inverting and non inverting configuration,gain depends upon feedback resistance.

What is the reason behind this? How its related?.
 

For both inverting and non inverting configuration,gain depends upon feedback resistance.
What is the reason behind this? How its related?.

No - the gain depends on the RATIO of both resistors in the feedback path.
The reason: Negative feedback.
If you like to learn more about opamp applications it is useful/necessary to study the effect of FEEDBACK.
 

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