Электроплитка рассчитана на напряжение 127в и силу тока 4 а. опрелилите мощность тока в плитка?
анабель125
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30.06.2019 12:20
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2
P=4*127=508 Вт
U-127B P=U*I
I-4A P=127B*4A
P-? P=508B