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thuhoai0207
2 năm trước
Tại một điểm N nằm cách điện tích q1 một khoảng 2 cm tồn tại một điện trường E = 2V/m. Hãy xác định điện tích q1 ? nếu tại M nằm cách q11 khoảng 5cm có điẹn tích q2= 4.10^-8 hãy tính lực điện do q1 tác dụng lên q2? điện tích q2 có tác dụng lên q1 không? help me
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