Предмет: Физика, автор: rylin1997

Определите стоимость электрической энергии потребляемой лампой мощностью 100 Вт за 200 ч. горения. Стоимость 1 кВт* ч энергии 1,8 руб.

Ответы

Автор ответа: MashaPutnaj

W=P*t=0,1*200=20 кВт*ч

СТОИМОСТЬ=20*1,8=36 руб

rylin1997: Спасибо!

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