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 国际高中通用物理

[单选题]
How can a negatively cjic ke:jv(d7q uw*26+a4cmtcharged rod charge an electfr1b q )r+i-pd8tntk(uj bs6gn ,my 14roscope 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

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