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Physics, 26.12.2021 17:40 mem8163

Đặt điện áp xoay chiều u = U0cos(ωt) V (với U0 và ω không đổi) vào một đoạn mạch nối tiếp gồm điện trở thuần R, cuộn cảm thuần có cảm kháng ZL và tụ có dung kháng ZC thì cường độ dòng điện trong mạch có biểu thức i = I0cos(ωt – ) A. Hệ thức nào sau đây đúng?

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Đặt điện áp xoay chiều u = U0cos(ωt) V (với U0 và ω không đổi) vào một đoạn mạch nối tiếp gồm điện t...
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