本题目来源于试卷: Physics Unit20: Magnetism，类别为 国际高中通用物理
[单选题]
At a particular inst ry7 3g;drk 9j, ibt/.z+cxfoilknh ;,ant, an ,5ib)ai + 0tx awdlp1ppa(,jo electron moves eastward at speed V in a uniform magnetic field that is directed straight downwap a ,1pt0,dx5(jiba+iolawp) rd. The magnetic force that acts on it is
A. zero.
B. directed upward.
C. directed to the south.
D. directed to the north.
参考答案: C
本题详细解析:
暂无
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