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]
Two point charges of 4o*no1 k f 9 wmrubdwy+ tx8-8czz0fh.6(knpc+3c ,hk3k dc9*c.my61 g3njr /af4 uzdjh.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magd 9yrck1nc 6j, u3c.ahhfm3*/zgkd4jnitude 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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