Ответ:

Дано

R1=4Om                        R=R1+R2=4+2=6Om

R2=2Om                        U = I*R= 0.003*6=0.018B

I = 0.003A                       I=I1=I2            U1= I*R1= 0.003*4=0.012B  U2=I*R2=0.003*2=0.006B

R-?

U-?

U1 U2-?