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Автор - greendebil

Физика только 3 номер
(Можно и второй)

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Проверено экспертом

Автор - tana20101997

R2=10 Ом ???  I1-I2+I=U1/R1=3,5/5=0,7 A  U2=I2*R2=0,7*10=7 B

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