1 Кл = 0,000 01 микКл
тогда
-12мкКл = -0,000 012 Кл
p (уд.сопр. нихрома) = 1,1 Ом мм2/м = R*s/l
R = U/I = 120/2,4 = 50 Ом
l = R*s/p = 50*0,55/1,1 = 25 м
R₁₂=R₁+R₂=2+2=4 Om
R₃₄=R₃+R₄=10+1=11 Om
R₁₂₃₄=R₁₂R₃₄/(R₁₂+R₃₄)=4•11/(4+11)=44/15 Om=2.9333333Om
R₅₆=R₅R₆/(R₅+R₆)=30•4/(30+4)=120/34=60/17 Om=3.52941Om
R=R₁₂₃₄=R₅₆+R₇+r=44/15+60/17+4+2=3178/255 Om=12.462745 Om
I=I(R₇)=I(r)=E/R=48•255/3178=6120/1589 A=3.85148 A
U(r)=I(r)r=6120•2/1589=12240/1589=7.702958 V
U(R₇)=I(R₇)R₇=6120•4/1589=15.405916 V
U(R₅)=U(R₆)=IR₅₆=(6120/1589)(60/17)=21600/1589=13.593455 V
I(R₅)=U(R₅)/R₅=21600/(1589•30)=720/1589=0.453115 A
I(R₆)=U(R₆)/R₆=21600/(1589•4)=5400/1589=3.398364 A
U(R₁₂)=U(R₃₄)=IR₁₂₃₄=(6120/1589)(44/15)=17952/1589=11.29797 V
I(R₁)=I(R₂)=U(R₁₂)/R₁₂=17952/(1589•4)=4488/1589=2.82442 A
U(R₁)=I(R₁)R₁=4488•2/1589=8976/1589=5.64884 V
U(R₂)=I(R₂)R₂=4488•2/1589=8976/1589=5.94884 V
I(R₃)=I(R₄)=U(R₃₄)/R₃₄=(17952/1589)/11=1632/1589=1.02706 A
U(R₃)=I(R₃)R₃=1632•10/1589=16320/1589=10.27061 V
U(R₄)=I(R₄)R₄=1632•1/1589=1.02706 V