Motion of charged particle and Velocity selector and Mass spectrometer (id: 8dff

本题目来源于试卷: Motion of charged particle and Velocity selector and Mass spectrometer，类别为 美国物理杯赛(Physics Bowl)

[单选题]
09.18: A wire has a conventional current I directed to the righn5d3mfi,4wll. + d.i sq vy,aat. At th -fb/geg(ylr w:-:kkwe instant shown in the figure, an electron haf:b e-wl -g(y:kkwg/ rs a velocity directed to the left. The magnetic force on the electron at this instant is

A. zero.
B. directed out of the plane of the page.
C. directed into the plane of the page.
D. directed toward the top of the page.
E. directed toward the bottom of the page.


参考答案:  E


本题详细解析: 暂无

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