問題詳情
13. 下列關於電流大小的敘述，何者正確？
(A)導體橫截面積愈大，導體中的電流也愈大
(B)通過導體橫截面的電荷量愈多，導體中的電流愈大
(C)通電時間愈短，導體中的電流愈大
(D)通過導體橫截面的電荷量一定，通電時間愈長，導體中的電流愈小。
(A)導體橫截面積愈大，導體中的電流也愈大
(B)通過導體橫截面的電荷量愈多，導體中的電流愈大
(C)通電時間愈短，導體中的電流愈大
(D)通過導體橫截面的電荷量一定，通電時間愈長，導體中的電流愈小。
參考答案
答案：D
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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