2016 AP Physics C物理C—Electricity and Magnetism电磁真题系列之Practice Exam选择题免费下载

历年AP Physics物理学系列

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2016 AP Physics C Electricity&Magnetism Practice Exam Multiple Choices Free Download

2016 AP 物理C电磁模考选择题部分免费下载

此套题仅 p II含有简答题，

共计时45分钟，共35题

占总分50%

可以使用计算器

仅可使用铅笔

考试时会提供常用公式列表

部分真题预览：

9）9. A nonconducting sphere of radius R has a uniform volume charge density ρ . At the surface of the sphere, the electric field strength is E. If a second sphere of radius 2R was created of the same material and with the same charge density, what would be the strength of the electric field at the surface of the second sphere?

1. E/4
2. E 2
3. E
4. 2E
5. 4E

18）Four conducting wires perpendicular to the plane of the page are at the corners of a square, as shown in cross p in the figure above. The wires carry equal currents in the same direction. What is the direction of the total magnetic force on wire X caused by the other three wires?

1. To the north
2. To the south
3. To the east
4. To the west
5. In none of the directions above, since the magnitude of the force is zero

29）A small object with a charge of q = +3.0 μC and a mass m = 2.0 × 10^-6 kg enters a magnetic field of magnitude B = 0.20 T directed into the page, as shown in the figure above. If the speed of the object is 1000 m/s , the object’s acceleration at the moment it enters the field is most nearly

1. zero because the velocity is perpendicular to the magnetic field
2. 300 m/s² toward the bottom of the page
3. 300 m/s² toward the top of the page
4. 600 m/s² toward the bottom of the page
5. 600 m/s² toward the top of the page