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Ответ

Ответ дан
rshalbuidakov

A=UIt=4,5×0,25×90=101,25Дж


Ответ

Ответ дан
goodKid3

Дано:                 СИ

I = 250 мА          0,25A

t = 1,5 мин            90с

U = 4,5 В

A = ?

Решение

A=IUT

А=0,25A * 4,5 В  * 90с=101,25Дж

Ответ:101,25

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