10) Ro=U/I=30/0.5=60
L=Ro-(R1+R2)=60-40=20 Ом
11) I=12/16=1=0.75 A
R2=6/0.75=8 Ом
===================
Ro=2+10/2+3=10
Io=10/10=1
U1=Io*R1=2
U2=U3=5*1=5 B
I2=I3=Io/2=0.5 A
U3=10-(2+5)=3 B
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10) Ro=U/I=30/0.5=60
L=Ro-(R1+R2)=60-40=20 Ом
11) I=12/16=1=0.75 A
R2=6/0.75=8 Ом
===================
Ro=2+10/2+3=10
Io=10/10=1
U1=Io*R1=2
U2=U3=5*1=5 B
I2=I3=Io/2=0.5 A
U3=10-(2+5)=3 B