Предмет: Физика, автор: mishchenkov2000

какое количество теплоты выделится в нити накалла электрической лампочки за20 с , если при напряжении 5 В сила тока в ней равнааи0.2 А

Ответы

Автор ответа: Аноним

1

Формула количества теплоты:
Q=IUt
Q=0,2А*5В*20с=20Дж
Ответ:20Дж.

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