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 electroscop ) +gnthtbos *fw7f lqq-/zb(5e is briefly touched with a postdd ej8(b8 nk7y, (qmq4vmgwgd/4j i4itively charged gla q nkg4y /dim,wb(ddj(8mjet 47g8v 4qss rod. The 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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