R23=3*6/(3+6)=2 Ом, Rобщ=5+2+13=20 Ом,
I=U/Rобщ= 120/20=6А =I1=I23=I4,
U1=I*R1=6*5=30B, U23=6*2=12B=U2=U3, U4=6*13 =78B
R23=3*6/(3+6)=2 Ом, Rобщ=5+2+13=20 Ом,
I=U/Rобщ= 120/20=6А =I1=I23=I4,
U1=I*R1=6*5=30B, U23=6*2=12B=U2=U3, U4=6*13 =78B