本题目来源于试卷: Physics Unit16: Electric Charge and Electric Field，类别为 通用国际物理
[单选题]
A 5.0-mC charge is placed5 hhic;3q-ku n74d u)4uan pzu at the 0 cm marawt2airga19 ;zkh+ . (0 e/zque7crg zk of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At 1 r0wrta(7e.g u9z/ a ;gcz+kaziqeh2 what point on a line joining the two charges is the electric field zero?
A. 1.4 m from the 0 cm mark
B. 2.9 m from the 0 cm mark
C. 3.3 m from the 0 cm mark
D. 4.7 m from the 0 cm mark
参考答案: D
本题详细解析:
暂无
| 
