R, U, I, I1, I2, I3, U1, U2, U3—? R1=3 ОмR2=4 Ом R3=2 Ом I1=I=2 A
R=R1+R2*R3/(R2+R3)=3+4*2/(4+2)=3+8/6=4,33 Ом
U=I*R=2*4,33=8,66 B
I1=I=2 A
U1=I*R1=2*3=6 B
U2=U3=U-U1=8,66-6=2,66 B
I2=U2/R2=2,66/4=0,665 A
I3=I-I2=2-0,665=1,335 A