2010 AP Physics C物理C—Electricity and Magnetism电磁真题系列之简答题免费下载

历年AP Physics物理学系列

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2010 AP Physics C Electricity&Magnetism Free-Response Questions Free Download

2010 AP 物理C电磁简答题部分免费下载

此套题仅 p II含有简答题，

共计时45分钟，共3题

占总分50%

每道大题可能含有不同数量的小题

可以使用计算器

部分真题预览：

1）A charge +Q is uniformly distributed over a quarter circle of radius R, as shown above. Points A, B, and C are located as shown, with A and C located symmetrically relative to the x-axis. Express all algebraic answers in terms of the given quantities and fundamental constants.

1. Rank the magnitude of the electric potential at points A, B, and C from greatest to least, with number 1 being greatest. If two points have the same potential, give them the same ranking.
   ____VA ____VB ____VC
   Justify your rankings.
   Point P is at the origin, as shown below, and is the center of curvature of the charge distribution.
2. Determine an expression for the electric potential at point P due to the charge Q.
3. A positive point charge q with mass m is placed at point P and released from rest. Derive an expression for the speed of the point charge when it is very far from the origin.
4. On the dot representing point P below, indicate the direction of the electric field at point P due to the charge Q.
5. Derive an expression for the magnitude of the electric field at point P.