Предмет: Физика, автор: retvertit

Дам 50 баллов тому кто решит
Задача по ТОЕ

задача вся на фото​

Приложения:

Ответы

Автор ответа: zinovicgrigorij
1

Ответ: 4А; 1,4А; 2,4А

Объяснение:

Дано:

R1=18 Ом

R2=30 Ом

R3=20 Ом

U=120В

---------------

I1-?; I2-?; I3-?

R=R1+R2*R3/(R2+R3)=18+30*20/(30+20)=30 Ом

I=I1=U/R1=120/30=4А

U2=U3=U-I1*R1=120-4/18=48В

I2=U2/R2=48/30=1,6А

I3=U3/R3=48/20=2,4А

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