問題詳情

51. A rod of 0.3 m carries a current of I = 48.0 A in the direction shown in the figure and rolls alongthe rails with a constant speed. A uniform magnetic field of magnitude 0.25 T is directedperpendicular to the rod and the rails. What is the force acting on the rod?


(A) 3.6 N (→)
(B) 2.4 N (←)
(C) 1.2 N (←)
(D) 3.6 N (←)
(E) 1.2 N (→)

參考答案

答案：A,D
難度：計算中-1
書單：沒有書單，新增

用户評論

【面試倒楣鬼-22幸運上後西】評論

按照題目的答案, "the force"...