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Physics, 16.06.2021 14:00 scholar345

Mỗi giây có 2,1.1018 ion+ 2 và 1,8.1018
electron chạy qua tiết diện đèn ống.
Đường kính tiết diện của đèn ống là 2,0
cm. Mật độ dòng điện trung bình qua
đèn là bao nhiêu

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Mỗi giây có 2,1.1018 ion+ 2 và 1,8.1018
electron chạy qua tiết diện đèn ống.
Đường kín...
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