Предмет: Физика, автор: arefevnikita200

при устройстве молниеотвода применен стальной провод с площадью поперечного сечения 35mm² и длиной 20м. Найдите сопротивление этого провода

Ответы

Автор ответа: tana20101997

2

R=p*L/s=12*10^-2*20/35=6,86 Ом

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