• 咨询电话 13023111482
  • 犀牛首页
  • IB课程
  • AP课程
  • G5笔面试
  • AMC竞赛
  • HMMT竞赛
  • 物理碗竞赛
犀牛教育
  • AP力学真题
  • AP物理1真题
  • AP物理2真题
  • AP计算机真题
  • AP生物真题
  • AP化学真题
  • AP电磁学真题

AP电磁学真题

首页 > AP > AP物理 > AP电磁学 > AP电磁学真题

2019年AP电磁学简答题真题+答案+PDF下载

2021-08-17

2019年AP电磁学简答题真题+答案+PDF下载

1. A very long, thin, nonconducting cylinder of length L is centered on the y-axis, as shown above. The cylinder has a uniform linear charge density + λ . Point P is located on the y-axis at y c = , where L >> c .

(a) i. On the figure shown below, draw an arrow to indicate the direction of the electric field at point P due to the long cylinder. The arrow should start on and point away from the dot.

ii. Describe the shape and location of a Gaussian surface that can be used to determine the electric field at point P due to the long cylinder.

iii. Use your Gaussian surface to derive an expression for the magnitude of the electric field at point P. Express your answer in terms of λ , c, L, and physical constants, as appropriate.

(b) A proton is released from rest at point P. On the axes below, sketch the velocity v as a function of position y and the acceleration a as a function of position y for the proton.

The original cylinder is now replaced with a much shorter thin, nonconducting cylinder with the same uniform linear charge density + λ , as shown in the figure below. The length of the cylinder to the right of the y-axis is a, and the length of the cylinder to the left of the y-axis is b, where a < b .

(c) On the figure shown below, draw an arrow to indicate the direction of the electric field at point P due to the shorter cylinder. The arrow should start on and point away from the dot.

(d) i. Is there a single Gaussian surface that can be used with Gauss’s law to derive an expression for the electric field at point P? ____ Yes ____ No

ii. If your answer to part (d)(i) is yes, explain how you can use Gauss’s law to derive an expression for the field at point P. If your answer to part (d)(i) is no, explain why Gauss’s law cannot be applied to derive an expression for the electric field in this case.

A student in class argues that using the integral shown below might be a useful approach for determining the electric field at point P.

The student uses this approach and writes the following two integrals for the magnitude of the horizontal and vertical components of the electric field at point P.

(e)

i. One of the two expressions above is not correct. Which expression is not correct?

____ Horizontal component ____ Vertical component

ii. Identify two mistakes in the incorrect expression, and explain how to correct the mistakes.

2019年AP电磁学简答题真题余下省略!


你可能还关注

  1. 2021年AP电磁学简答题真题+答案+PDF下载 2021-08-17   
    2021年AP电磁学简答题真题+答案+PDF下载
    详情阅读
  2. 2018年AP电磁学简答题真题+答案+PDF下载 2021-08-17   
    2018年AP电磁学简答题真题+答案+PDF下载
    详情阅读
  3. 2017年AP电磁学简答题真题+答案+PDF下载 2021-08-17   
    2017年AP电磁学简答题真题+答案+PDF下载
    详情阅读
  4. 2016年AP电磁学简答题真题+答案+PDF下载 2021-08-17   
    2016年AP电磁学简答题真题+答案+PDF下载
    详情阅读
  5. 2015年AP电磁学简答题真题+答案+PDF下载 2021-08-17   
    2015年AP电磁学简答题真题+答案+PDF下载
    详情阅读

扫码免费下载真题

AP电磁学真题

  • 2021年AP电磁学简答题真题+答案+PDF下载
  • 2019年AP电磁学简答题真题+答案+PDF下载
  • 2018年AP电磁学简答题真题+答案+PDF下载
  • 2017年AP电磁学简答题真题+答案+PDF下载
  • 2016年AP电磁学简答题真题+答案+PDF下载
  • 2015年AP电磁学简答题真题+答案+PDF下载
犀牛国际

犀牛国际(X-NEW),由业内多名教学专家共同组建,不乏来自加州理工大学、剑桥大学、清华大学、北京大学、复旦大学、新加坡国立大学等国际一流大学。 其中有博士、硕士的学历老师众多,学术功底扎实,有的已经执教十余年,国际领域经验丰富。

国际学科

  • IB课程辅导
  • AP课程培训
  • A-Level课程培训
  • IGCSE课程辅导

国际竞赛

  • AMC数学竞赛
  • AIME数学竞赛
  • HiMCM竞赛
  • PUMaC竞赛
  • HMMT竞赛
  • 滑铁卢数学竞赛
  • 物理碗竞赛
  • BPhO竞赛
  • BAAO竞赛
  • USNCO竞赛
  • UKCHO竞赛
  • CCC竞赛
  • USABO竞赛
  • BBO竞赛
  • BRAIN BEE

G5笔面试

  • STEP
  • PAT
  • ECAA
  • LNAT
  • MAT
  • TSA
  • NSAA
  • BMAT
  • ENGAA
  • CTMUA
犀牛国际 版权所有 沪ICP备2021004381号-1