試卷名稱:111年 - 111 國立中山大學_學士後醫學系招生考試:物理及化學#113520
年份:111年
科目:學士後西醫物理及化學
7.A straight wire is bent into the shape shown. Determine the net magnetic force on the wire when the current 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