問題詳情
1.A thin insulating rod of length L lies along jc axis and carries a uniformly distributed charge +Q.
【題組】(a)Find the electric field at a point p along its axis at a distance d from one end as shown in Fig. 1. (15 %)
參考答案
答案：B
難度：非常簡單0.992395
統計：A(2),B(522),C(2),D(0),E(0)