Graphic plots for the case where there were many gj-channels (namely 300, 1000, and 3000), giving an exponential fall-off in voltage. A: Length constant (λ) as a function of the number of gj-channels. λ varies approximately with the square root of the number of gj-channels. B: Overall propagation velocity (θov) as a function of the number of channels. C: Velocity (θov) plotted against λ, showing that approximate doubling or tripling of λ produces a greater effect of propagation velocity.