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此套題僅?p II含有簡答題,
共計時45分鐘,共35題
占總分50%
可以使用計算器
僅可使用鉛筆
考試時會提供常用公式列表
1)A proton moving along the positive x-axis enters an electric field that is directed along the positive y-axis. What is the direction of the electric force acting on the proton after it enters the electric field?
5)All the following statements about an isolated, solid charged conductor are correct EXCEPT:

9)A proton moving to the right at constant speed u enters a region containing uniform magnetic and electric fields and continues to move in a straight line. The magnetic field B is directed toward the top of the page, as shown above. The direction of the electric field must be

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