問題詳情
40 一導線長 6 m，電流為 2.5 A，若其電流方向與磁場之夾角為 60°，而磁通密度為 0.6 Wb/m2，則導線受力為何？
(A) 4.5 牛頓
(B) 4.5
牛頓
(C) 9 牛頓
(D) 9
牛頓
(A) 4.5 牛頓
(B) 4.5
牛頓 (C) 9 牛頓
(D) 9
牛頓
參考答案
答案：B
難度：簡單0.806349
統計：A(29),B(254),C(14),D(18),E(0)
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