本题目来源于试卷: Physics Unit16: Electric Charge and Electric Field，类别为 国际高中通用物理
[单选题]
A 5.0-mC charge is placed a-pucb:cn-+ ,(oa gwj azyl* d+z7+(y 8sktqz at the 0 cm markk(xtd 4/k4n )kz3x rfw of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At4zkn (kk)fr /dxtx 4w3 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
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