<P> To solve for R2: </P> <Dl> <Dd> R 2 = R 1 ⋅ 1 (V i n V o u t − 1) (\ displaystyle R_ (2) = R_ (1) \ cdot (\ frac (1) (\ left (((\ frac (V_ (\ mathrm (in))) (V_ (\ mathrm (out)))) - 1) \ right)))) </Dd> </Dl> <Dd> R 2 = R 1 ⋅ 1 (V i n V o u t − 1) (\ displaystyle R_ (2) = R_ (1) \ cdot (\ frac (1) (\ left (((\ frac (V_ (\ mathrm (in))) (V_ (\ mathrm (out)))) - 1) \ right)))) </Dd> <P> Any ratio V / V greater than 1 is not possible . That is, using resistors alone it is not possible to either invert the voltage or increase V above V . </P>

The resistance and capacitance divider ratio is calculated as