Verified answer

Ответ:

1-B    2-A   3-B

Объяснение:

1) R=(R2+R3)*R1/(R1+R2+R3)=(3+7)*5/(3+7+5)=10/3

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2) U1=I1*R1=0.1*5=0.5 B

I1=I2=U1/(R2+R3)=0./10=0.05 A

U2=I2R2=0.05*3=0.15 B

U3=U1-U2=0.5-0.15=0.35 B

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