Odpowiedzi

2009-12-19T16:56:53+01:00
L=500m
s=0,12mm²=0,12*10^-6 m²
ρ=18,2*10^-9 Ωm
R=ρ*l/s=18,2*10^-9*500/(0,12*10^-6)=75,8Ω
8 3 8
2009-12-19T19:56:46+01:00
Dane:
l=500m
s=0,12mm²=0,12*10^-6 m²
ρ=18,2*10^-9 Ωm

R=ρ*l/s=18,2*10^-9*500/(0,12*10^-6)=75,8Ω
7 3 7