I2=1,5A
U=R2*I=4*1,5=6 B
I1=U/R1=6/20=0,3A
I=I1+I2=1,5+0,3=1,8 A
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I2=1,5A
U=R2*I=4*1,5=6 B
I1=U/R1=6/20=0,3A
I=I1+I2=1,5+0,3=1,8 A