es13
lambda = Q/l = 1.6×10^(-19)×3.26×10^(-14)×(6.02×10^23)/0.27=1.16... × 10^-8 C/m
es14
ne/ N = (2.53×10^-11)/(6.02×10^23) = 4.20... × 10^-13 moli
l = Q/lambda = (2.53×10^11*1.6*10^-19)/(3.26*10^-7) =~ 0.124 m = 12.4 cm
...su ciascuna superficie???