Предмет: Физика, автор: fedormalyginppp

Напряжение на участке АВ равно 64в. Какова сила тока в резисторе сопротивлением 4ОМ？ответ запишите в амперах

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Автор ответа: fatt52

2

U=64 B R1=12 R2=4 R3=5 I2-?

===

R12=R1*R2/(R1+R2)=12*4/(12+4)=3 Ом

Ro=R12+R3=3+5=8 Ом

Io=U/Ro=64/8=8 A

U12=Io*R12=8*3=24 B

I2=U12/R2=24/4=6 A

==========================

Автор ответа: gekolya5

3

6Aмпер.Решил по формуле

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