Motion of charged particle and Velocity selector and Mass spectrometer (id: 6854

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]
08.36: An electron moves inl 6*c,i xzfs8:twvt* q the plane of the page1wjin ycy+4ylv .k9p3 through two regions of space along the dotted-line trajectory shown in the figure. There is a uniform electric field in Region I directed into the plane of the page (as shown). w9 p3i+ l v14y.jknycyThere is no electric field in Region II. What is a necessary direction of the magnetic field in regions I and II?
Ignore gravitational forces.

A. Region I is Down the plane of the page Region II is Up the plane of the page
B. Region I is Up the plane of the page Region II is Into the plane of the page
C. Region I is Up the plane of the page Region II is Out of the plane of the page
D. Region I is Down the plane of the page Region II is Out of the plane of the page
E. Region I is Into the plane of the page Region II is Up the plane of the page


参考答案:  C


本题详细解析: 暂无

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