U1=Io*R1=2.4*2=4.8 B
U23=Uo-U1=12-4.8=7.2B
I2=U23/R2=7.2/4=1.8 A
I3=Io-I2=2.4-1.8=0.6A
R3=U23/I3=7.2/0.6=12 Ом
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U1=Io*R1=2.4*2=4.8 B
U23=Uo-U1=12-4.8=7.2B
I2=U23/R2=7.2/4=1.8 A
I3=Io-I2=2.4-1.8=0.6A
R3=U23/I3=7.2/0.6=12 Ом