
Nguyên văn bởi
longzma11
Cho 2 dong dien I1=12 A, I2 = 18 A chay trong 2 day dan thang dai song song cach nhau 5 cm, nguoc chieu nhau. Xac dinh cam ung tu tai diem K cach deu I1, I2 la 2 cm.
Giup em voi !!:too_sad:
Đề nghị bạn Longzma11 gõ bài viết bằng tiếng việt có dấu nhé.
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