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Physics, 18.06.2021 16:50 kenzieeee96

: Hai điểm M và N gần một dòng điện thẳng dài. Khoảng cách từ M đến dòng điện lớn gấp 2 lần khoảng cách từ N đến dòng điện. Độ lớn của cảm ứng từ tại M và N là BM và BN thì:

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: Hai điểm M và N gần một dòng điện thẳng dài. Khoảng cách từ M đến dòng điện lớn gấp 2 lần khoảng c...
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