Предмет: Физика, автор: alinochkayarullina

Уравнение колебаний напряжения имеет вид u=40cos25πt. Найти амплитуду напряжения, период, собственную и циклическую частоту электромагнитных колебаний.

Ответы

Автор ответа: Amigo3

Umax=40 В - амплитуда. 2*π*f*t=25*π*t⇒2*π*f=25*π⇒2*f=25⇒f=25/2=12,5 Гц - собственная частота колебаний. Циклическая частота равна ω=2*π*f=25*π радиан в секунду.

Ответ: 40В, 12,5 Гц, 25*π радиан в секунду.

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