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1. 將 2 庫倫的正電荷從電位 20V 處移至 100V 處,需花費 10 秒的時間,則其平均功率大小為何?(A) 32W (B) 20W (C) 18W (D) 16Wˉ
問題詳情
1. 將 2 庫倫的正電荷從電位 20V 處移至 100V 處,需花費 10 秒的時間,則其平均功率大小為何?
(A) 32W
(B) 20W
(C) 18W
(D) 16Wˉ
參考答案
答案:D
難度:簡單0.72
統計:A(1),B(4),C(1),D(18),E(0)
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