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 instant, an ;*wuj n.++eubk 8pxbaelectron moves eastwans0sdug:0 j mm.bjf 789gklx 5rd at speed V in a uniform magnetic field that is directed straight downward. The magnetic forc jlg 0u 78fgdnb0jksmxm 5s.:9e 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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