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Автор - MilaKyn

Вычислите напряжение,если при силе тока 10 А, за 15 минут сторонние силы совершили работу 400 Дж.

Ответ

Автор - kirills1
P = U * I --------------> U = P / I 

P - мощность 
I - сила тока ( 10 А ) 

P = A / t 

A - работа ( 400 Дж ) 
t - время ( 15 мин ) 

P = 400 / 15 = 26,6 Вт 

U = P / I = 26,6 / 10 = 2,66 B 

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