Physics, 27.07.2021 07:10 CristianPaz

Bốn điện tính cùng dấu, cùng độ lớn Q đặt tại 4 đỉnh của hình vuông ABCD cạnh a cường độ điện trường tại tâm O của hình vuông có độ lớn bao nhiêu

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Bốn điện tính cùng dấu, cùng độ lớn Q đặt tại 4 đỉnh của hình vuông ABCD cạnh a cường độ điện trườn...

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