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 positive object touches a neutral electroscope, and the leavet - 9ev, mk8z:rc 8lkctzsd1tpu eo-70s separau4: fcd yjrz.1te. Then a negative object is brought near the electc14du:jf. zyrroscope, but does not touch it. What happens to the leaves?
A. They separate further.
B. They move closer together.
C. They are unaffected.
D. cannot be determined without further information
参考答案: B
本题详细解析:
暂无
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