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6假設銅線之電阻係數為 1.8×10-8 歐姆‧公尺(Ω·m),長為 100 公分,截面積為 9 平方毫米,則此銅線電阻為何?(A) 0.001 Ω (B) 0.002 Ω (C) 0.01 Ω (D
問題詳情
6假設銅線之電阻係數為 1.8×10-8 歐姆‧公尺(Ω·m),長為 100 公分,截面積為 9 平方毫米,則此銅線電阻為何?
(A) 0.001 Ω
(B) 0.002 Ω
(C) 0.01 Ω
(D) 0.02 Ω
參考答案
答案:B
難度:
簡單
0.767
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