本题目来源于试卷: Physics Unit20: Magnetism，类别为 通用国际物理
[单选题]
A velocity selector fh9j4kst)r 5 ycnhp */ y;;n.m a, av3hr3cpnwsonsists of a charged particle passing through crossed electric and magnetic fields. The forces exerted by these fields are in opposite directions, and only particles of a certain velocity will move in a straight line. In y hr.hs3m; p3w n*n,a/ncv;apthe following, disregard the magnitudes of the fields. In a velocity selector, the particles move toward the east, and the magnetic field is directed to the north. What direction should the electric field point?
A. east
B. west
C. up
D. down
参考答案: D
本题详细解析:
暂无
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