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]
Two point charges of +3.0 mC and -7.0 mC are placed at x = m/h bt030,mv x a u4dumez39qu0 a-dk5 l0k3r*/ b xu sp:; c/ejbjansk)and x = 0.20 m. Wh relk*n/x pu)-5 j cs/sk0dba;ba k:j3at is the magnitude of the electric field at the point midway between them?
A. $1.8 \times 10^{6} \; N/C$
B. $3.6 \times 10^{6} \; N/C$
C. $4.5 \times 10^{6} \; N/C$
D. $9.0 \times 10^{6} \; N/C$
参考答案: D
本题详细解析:
暂无
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