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Квадратная рамка со стороной a расположена в магнитном поле так, что нормаль к рамке образует с направлением поля угол α. Магнитное поле изменяется со временем по закону B=B₀·cos(ω·t). Определить ЭДС индукции в рамке как функции времени.
