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]
04.14: A positive electric charge of negligible weight is rele 3vosw.vn18 mta j s86a9 k4s,2kqgtoy/i4os mosed from rest between the poles of a horseshoe ma 4g8ktaoo6s2o q m /is k4,9jsygnet as shown. What would be the direction of the acceleration of the charge caused by the magnetic field?
A. towards the north pole
B. towards the south pole
C. upwards
D. downwards
E. none of the above
参考答案: E
本题详细解析:
暂无
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