Physics, 05.07.2021 18:10 hii2857

Một quả cầu kim loại có bán kính R= 20cm, mang điện tích q = 4.10 -7 C phân bố đều, đặt trong không khí. Hãy xác định:

a) Mật độ điện mặt của quả cầu.

b) Năng lượng điện trường của quả cầu tích điện.

Answers: 3

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Một quả cầu kim loại có bán kính R= 20cm, mang điện tích q = 4.10 -7 C phân bố đều, đặt trong không...

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