Определите частоту колебаний переменного тока,
изменяющегося по закону i
= 200 сos\(12,56t \+\lt img src="data:image/webp;base64,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" alt="Image"/\gt \(величины заданы в системе СИ\).
- 4 Гц
- 12,56 Гц
- 200 Гц
- 2 Гц