Предмет: Физика, автор: Opopk

Збираємо електричне коло за схемою. Замикаємо коло і знімаємо покази амперметра і вольтметра. I = 0,2A U = 3,6 B. Обчислимо опір спіралі лампи розжарювання R = U / I;

Ответы

Автор ответа: maxkovxz
0

Ответ: Опір спіралі лампи розжарювання можна обчислити за формулою:

R = U / I

де U - напруга, яку виміряли вольтметром, I - сила струму, яку виміряли амперметром.

Підставляємо дані:

R = 3.6 B / 0.2 A

Отримуємо:

R = 18 Ом

Таким чином, опір спіралі лампи розжарювання становить 18 Ом.

Объяснение:

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