как изменится мощность тока на участке цепи если сопротивление увеличится в 4 раза, а сила тока уменьшится в 2 раза - №19074508

как изменится мощность тока на участке цепи если сопротивление увеличится в 4 раза, а сила тока уменьшится в 2 раза
- Предмет:
  Физика
- Автор:
  miranda54
- 6 лет назад

Ответы 1

$P=I^2*R$ $P= (\frac{I}{2} )^2*4R = \frac{I^2}{4} *4R$ не изменяется
- Автор:
  abdullah20
- 6 лет назад
- 0
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