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]
Sphere A carries a net positive charge, anz. eze uylgn 5x(bh)10f1+ dnpd sphere B ih.)i,vw9 ;pozvmq gs- s neutral. They are placed near each other 9,qv ;ov .zs )p-whmigon an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?
A. Sphere B remains neutral.
B. Sphere B is now positively charged.
C. Sphere B is now negatively charged,
D. The charge on sphere B cannot be determined without additional information.
参考答案: C
本题详细解析:
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