Physics Unit16: Electric Charge and Electric Field (id: 257ad493d)

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 a;pe:)bwyqv p:t the 0 cm xfgi6.v8y9 1 )x) pf onwai6krmark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30 cm maroyx8f r iwx9) .vg6nf6p)ik1a k?

A. $4.0 \times 10^{5} \; N/C$
B. $5.0 \times 10^{5} \; N/C$
C. $9.0 \times 10^{5} \; N/C$
D. $1.4 \times 10^{6} \; N/C$


参考答案:  D


本题详细解析: 暂无

微信扫一扫，分享更方便