Physics, 15.06.2021 20:50, GusGus11

Một quả cầu kim loại bán kính 50 cm, đặt trong chân không, tích điện Q = 5.10 ^– 6 C. Tìm điện thế tại tâm quả cầu, chọn gốc điện thế ở vô cùng. a.180000 V b.0 V c.300 V d. 90000 V

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Một quả cầu kim loại bán kính 50 cm, đặt trong chân không, tích điện Q = 5.10 ^– 6 C. Tìm điện thế t...