Physics Unit16: Electric Charge and Electric Field (id: 3e6fadf87)

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]
How can a negatively charged ro/(5q k t b mktsvqh.8pk,-ev0p5km3tw d chargh y1nisn8ow)ue)*:6 q.ghn* 3t ngsy oe an electroscope positively?

A. by conduction
B. by induction
C. by deduction
D. It cannot.


参考答案:  B


本题详细解析: 暂无

微信扫一扫，分享更方便