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Автор - sergei2013riller2013

электордвигатель Р=3кВТ работает под U=380В .КПД двигателя 98% .определить силу тока в двигателе

Ответ

Проверено экспертом

Автор - fatt52


n=0.98   U=380   P=3000  I=?

n=P/(I*U)

I=P/(n*U)=3000/(0.98*380)=8 A

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