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 to tee9yd .h*1bqvsb bcv7vc07fy::yjt9 1l 4m5g puog.uches a neutral electroscope, and the leaves separate. Then a negative object is brought near the electroscopc 4 17jtsvugfm70locb b5yvv::y pg 9.e, 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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