разобраться! 1.Определите, как изменятся показания амперметра при замыкании ключа Кл
2.Определите общую рассеиваемую тепловую мощность при замкнутом и разомкнутом ключе Кл
3.Определите рассеиваемую мощность каждым резистором, входящим в схему при замкнутом и разомкнутом ключе Кл

 1)Эту величину называют частотой излучения ν. Поскольку для всех электромагнитных волн скорость в вакууме (с) одинакова, по частоте легко определить длину волны λ: λ = с/ν. Мы просто делим путь, пройденный светом за секунду, на число колебаний за то же время и получаем длину одного колебания.

.2)Продольные волны — это такие волны, в которых колебания частиц среды совершаются вдоль направления распространения волн, например, звуковые волны. Поперечные волны — это такие волны, при которых колебания частиц среды совершаются перпендикулярно направлению распространения волн, например, волны на поверхности воды.

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