Вопрос школьника по предмету Физика
В сеть с каким напряжением положено включить лампочку если сопротивление ее спирали в горячем состоянии 8 оМ , а ток в ней не должен превышать 1,5 А?
Ответ учителя по предмету Физика
по формуле ома(V=I*R) вычисляем 1,5 *8 =12 вольт
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