本题目来源于试卷: Maxwell Equations，类别为 美国物理杯赛(Physics Bowl)
[单选题]
12.50: A spatially uniform elec d pe5dl;d:x8n 9q3kdwtric ;mep:di 66j ncd+zsy1wbu xh3s v0:-cfield is constrained within the circular region of radiu ;u iyp:e+1 :hsndjmv-0 c6wsbzcx63 ds R as shown. The field is directed out of the plane of the page and its strength is decreasing uniformly with time. Which one of the following choices best represents the direction of the Lorentz force on the electron at the instant shown in the figure when the electron is moving up the plane of the page? Ignore gravity
A. No Force
B. Into the plane of the page
C. Out of the plane of the page
D. To the right
E. To the left
参考答案: B
本题详细解析:
暂无
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