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Physics, 29.11.2021 14:00 mariafsoriano928

cho 1 dây dẫn thẳng AB có dòng điện I=12A biết rằng điểm M nằm trên trung trực của AB cách Ab 10cm và nhìn dưới góc AB 1gosc =60 độ xác định chiều dài dây dẫn

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cho 1 dây dẫn thẳng AB có dòng điện I=12A biết rằng điểm M nằm trên trung trực của AB cách Ab 10cm v...
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