# Potentiometer Resistance

## Homework Statement

In the circuit below, the wiper divides the potentiometer resistance between $$\alpha R$$ and$$\ (1- alpha R)$$, 0 $$\leq$$$$\alpha$$ $$\geq 1$$. Find Vo / Vs

KVL
KCL

## The Attempt at a Solution

Im thinking that the Pot. Resistance will be R +(1-$$\alpha$$)R. Then to find the voltage (R +(1-$$\alpha$$)R)I

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Homework Helper
You can ignore the resistance of the main part of the pot to ground that is below the wiper because it is in parallel with a short circuit.
The resitance of the pot is simply, R - alphaR = R(1-alpha)

(($$\Sigma$$R)/I)Vs

Sorry about the formatting, I need to learn how to use the system.

Thanks

Andrew