Предмет: Физика, автор: mayychik

Физика 8 класс (4 задача )

Приложения:

Ответы

Автор ответа: dkortel

Ответ:

U = 0,621 В

Объяснение:

R = ρL/S

ρ(алюминия)=0,271 Ом * мм2 / м

U = IR = IρL/S=0,271*0,1*4,5/0,25*0,25*π = 0,612 В

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