Physics, 17.06.2021 22:50 savanna39

Cứ mỗi giây có 2,5.1018 ion hóa trị 2 và 2,5.1018 electron chạy qua tiết diện của đèn ống. Bán kính tiết diện của đèn ống là 1cm. Tính mật độ dòng điện qua đèn.

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Cứ mỗi giây có 2,5.1018 ion hóa trị 2 và 2,5.1018 electron chạy qua tiết diện của đèn ống. Bán kính...

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