Предмет: Физика, автор: uchernovolova

Срочно ПОМОГИТЕ!!!
Пожалуйста

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Ответы

Автор ответа: MashaPutnaj

1) дано U=280 В С=7,4*10^-3 Ф Q- ?

С=Q/U
Q=C*U=7,4*10^-3*0,28*10^3=2,072 Кл

2) Дано L=2,8*10^-6 Гн С=120*10^-12 Ф T- ?

T=2*π*√L*C=6,28*√2,8*120*10^-18=115*10^-9 с=0,115 мкс

3) не указано соединение нет схемы
W=C*U^2/2

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