Предмет: Физика, автор: lilialebedeva934

1) Работа тока в приборе за 15 минут равна 40500 Дж, напряжение на концах 15 В. Какой силы ток был пропущен через прибор?
2). При подключении настольной лампы в сеть с напряжением 220 В через неё прошел ток силой 0,5 А. При этом была израсходована энергия 330 Дж. Какое время работала лампа ?

3) Какова мощность тока в телевизоре, включенном в цепь снапряжением 220 В, при силе тока 0,4 А?

4) При включении магнитофона в сеть с напряжением 220 В через его электрическую цепь прошел заряд 2500 Кл. Чему равна работа электрического тока в цепи?​

Ответы

Автор ответа: 031108max
0

Ответ:

Теорема Пифагора.....


lilialebedeva934: ничего что это физика, а не геометрия.
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