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Physics, 17.12.2021 16:50 shukriabdisabrie
Mặt phẳng (P) đặt trong không khí, tích điện đều với mật độ điện mặt = – 3,54.10 – 9 C/m2. Chọn gốc điện thế tại mặt phẳng (P); tính điện thế tại điểm M cách (P) một đoạn x = 40 cm.
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Mặt phẳng (P) đặt trong không khí, tích điện đều với mật độ điện mặt = – 3,54.10 – 9 C/m2. Chọn gố...
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