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 placed at the 0 4envlnb7 -m l;g2zi7)ecn+wk cm mark of a meter stickcmf aj 1 i. lv-u0)zs ,wgs-4kli1+kkj and a -4.0 mC charge i-, zug1s. fl )icjkmwi lkjk4va-+01 ss placed at the 50 cm mark. At 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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