試卷名稱:92年 - 92 高雄醫學大學_學士後醫學系招生考試試題:普通物理學#125213
年份:92年
科目:學士後西醫-物理
23. One-quarter of a circular loop of wire carries a current I as shown in Fig.23. The current I enters and leaves on straight segments of wire. The straight wires are along the radial direction from the center C of the circular portion. The length of each straight segment is h. Find the magnetic field at C.

(A) 0
(B)
(C)
(D)
(E)