Physics, 20.08.2021 05:00 KindaSmartPersonn

Tính điện trường của sợi dây AB có độ dài 2a, tích điện với mật độ điện dài λ, gây ra tại điểm H trên đường vuông góc với trung điểm dây (hình vẽ 1). Khoảng cách
đoạn OH = h. Xét trường hợp đặc biệt khi a→∞.

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Tính điện trường của sợi dây AB có độ dài 2a, tích điện với mật độ điện dài λ, gây ra tại điểm H t...

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