R1=4 R2=3 R3=6 R4=3 E=12 r=1 Io=?
R23=R2*R3/(R2+R3)=3*6/(3+6)=2 Ом
R123=R1+R23=4+2=6 Ом
Ro=R4*R123/(R4+R123)=3*6/(3+6)=2 Ом
Io=E/(Ro+r)=12/(2+1)=4 A
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R1=4 R2=3 R3=6 R4=3 E=12 r=1 Io=?
R23=R2*R3/(R2+R3)=3*6/(3+6)=2 Ом
R123=R1+R23=4+2=6 Ом
Ro=R4*R123/(R4+R123)=3*6/(3+6)=2 Ом
Io=E/(Ro+r)=12/(2+1)=4 A
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