Op-Amp: voltage-follower question

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In a voltage-follower configuration using an op-amp, the output voltage (Vout) ideally equals the input voltage (Vin), resulting in a closed-loop gain of 1. When a resistor ratio of 9:1 is mentioned, it typically refers to a non-inverting amplifier setup rather than a true voltage follower. In this case, the resistors are positioned in the feedback loop, with one resistor connected from the output to the inverting input and the other from the inverting input to ground. The closed-loop gain can be calculated using the formula Vout = Vin * (1 + R2/R1), where R2 is the feedback resistor and R1 is the resistor to ground. Understanding these configurations is crucial for accurate circuit design and analysis.
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Op-Amp: "voltage-follower" question

Hi all, ...

If a simple op-amp circuit is described as:
-> being in a "voltage-follower with-gain" configuration, and
-> having a resistor ratio of 9:1

...Where are the two resistors positioned with respect to the op-amp circuit element, and
...How, if at all, doe they come into play when calculating the configuration's "closed-loop gain"?

Thanks heaps!
 
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