問題詳情

7.A straight wire is bent into the shape shown. Determine the net magnetic force on the wire when thecurrent I travels in the direction shown in the magnetic field B:


(A) 2IBL in the +z direction
(B) 2IBL in the -z direction
(C) 4IBL in the +y direction
(D)4IBL in the -y direction
(E) zero

參考答案

答案：A
難度：計算中-1
書單：沒有書單，新增