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]
An originally neutral f.v:hqel:yzx *9guq;6g9 bb 00cajt velectros.t rtj05ks o 0p-) c;7qdditwtcope is briefly touched with a positively charged glass rod. Tt0ic tj - wd;qsrtk.t5do7)p0he electroscope
A. remains neutral.
B. becomes negatively charged.
C. becomes positively charged.
D. could become either positively or negatively charged, depending on the time of contact.
参考答案: C
本题详细解析:
暂无
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