Предмет: Физика, автор: Аноним

На какую силу тока должен быть рассчитан провод первичной обмотки сварочного трансформатора, если во вторичной обмотке максимальное значение силы тока 80А при напряжении 40В? Напряжение на первичной обмотки трансформатора 380В. Потерями мощности пренебрегать. ​

Ответы

Автор ответа: omalipp71
2

Ответ:

8,4 А

Объяснение:

P1=P2

I1U1=I2U2

I1=I2U2/U1=80A×40В/380В=8,4А

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