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Physics, 15.12.2021 14:00 alani64

Một đoạn dây AB có dòng điện 10 A; một dây dẫn khác rất dài, song song với AB và cách AB 50 cm, có dòng điện 40 A chạy qua như hình vẽ. Xét điểm M nằm trên đường thẳng AB, cách B 5 cm. Xác định hưởng và độ lớn của vector cảm ứng từ do hai dòng điện này gây ra tại M?

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Một đoạn dây AB có dòng điện 10 A; một dây dẫn khác rất dài, song song với AB và cách AB 50 cm, có d...
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