<Dd> V 2 V 3 = Z I 2 Z I 3 e γ 2 (\ displaystyle (\ frac (V_ (2)) (V_ (3))) = (\ sqrt (\ frac (Z_ (I2)) (Z_ (I3)))) e ^ (\ gamma _ (2))) </Dd> <Dd> V 3 V 4 = Z I 3 Z I 4 e γ 3 (\ displaystyle (\ frac (V_ (3)) (V_ (4))) = (\ sqrt (\ frac (Z_ (I3)) (Z_ (I4)))) e ^ (\ gamma _ (3))) </Dd> <P> The terms Z I n Z I m (\ displaystyle (\ sqrt (\ frac (Z_ (In)) (Z_ (Im))))) are impedance scaling terms and their use is explained in the image impedance article . </P> <P> The overall voltage ratio is given by </P>

Attenuation constant and phase constant in transmission lines