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Physics, 29.07.2021 21:30 saderussell2003

Một hình chữ nhật kích thước 3cm×4cm đặt trong từ trường đều có cảm ứng từ B=5.10^-4 vectơ cảm ứng từ hợp với mặt phẳng một góc 30° từ thông qua hình chữ nhật đó là

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Một hình chữ nhật kích thước 3cm×4cm đặt trong từ trường đều có cảm ứng từ B=5.10^-4 vectơ cảm ứng t...
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