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Physics, 12.08.2021 09:50 DCURLS3518

một quả cầu kim loại bán kính 50cm đặt trong chân không tích điện Q = 5*10^-6, tính điện thế tại tâm của quả câu

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một quả cầu kim loại bán kính 50cm đặt trong chân không tích điện Q = 5*10^-6, tính điện thế tại tâm...
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