本题目来源于试卷: Electric Field and Electric Induction，类别为 美国物理杯赛(Physics Bowl)
[单选题]
02.09: When a positive electricall;u /;n.mg f-)ij vg9 5ztahhdhy chargx5; a* 5msnahmed glass rod is brought near a neutral hollow metal sphere suspended by an insulating string, the sphere willx * anahm;5ms5 be attracted to the rod because:
A. the rod is much larger than the sphere
B. the rod removes electron from the sphere
C. the electric charge produces a magnetic field to attract the sphere
D. the charge on the rod causes a separation of charge in the sphere
E. some of the protons from the rod have been given to the sphere
参考答案: D
本题详细解析:
暂无
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