Предмет: Физика, автор: grishanovaveronika20

Каково удельное сопротивление провода площадью поперечного сечения 0, 16 мм, если кусок этого провода длиной 2,4 м имеет сопротивление 1, 5 Ом?​

Ответы

Автор ответа: zinovicgrigorij
2

Ответ: 0,1 Ом*мм²/м

Объяснение:

Дано:

S=0,16мм²

l=2,4м

R=1,5 Ом

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

ρ-?

R=ρl/S

Отсюда ρ=RS/l=1,5*0,16/2,4=0,1 Ом*мм²/м

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