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Physics, 15.12.2021 18:00 jay1041

Đặt điện áp u = 120√2 cos(100πt+2π/3) (v) vào hai đầu một cuộn cảm thuần L mắc nối tiếp với một tụ điện C. Thì biểu thức điện áp hai đầu tụ điện là
uc = 160√2 cos(100πt+2π/3) (v).Cường độ dòng điện hiệu dụng trong mạch I = 2A .Tính độ tự cảm L của cuộn cảm .

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