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Physics, 28.11.2021 15:20 lily3934

Đoạn mạch xoay chiều gồm tụ điện có điện dung (F) mắc nối tiếp với điện trở thuần . Đặt vào hai đầu đoạn mạch một hiệu điện thế xoay chiều có dạng u = 200 cos(100V. Biết I sớm pha hơn u góc π/4 Tính R

Viết biểu thức i

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Đoạn mạch xoay chiều gồm tụ điện có điện dung (F) mắc nối tiếp với điện trở thuần . Đặt vào hai đầu...
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