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Physics, 14.12.2021 09:00 maxi12312345

Một đoạn dây AB có dòng điện 10A; một dây dẫn khác rất dài, song song với AB và cách AB 50cm, có dòng điện 40A chạy qua như hình vẽ. Xét điểm M nằm trên đường thẳng AB, cách B 5cm. Xác định hướng 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 10A; một dây dẫn khác rất dài, song song với AB và cách AB 50cm, có dòn...
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