2017 AP Physics C物理C—Electricity and Magnetism電磁真題系列之Practice Exam選擇題免費(fèi)下載

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2017 AP Physics C Electricity&Magnetism Practice Exam Multiple Choices?Free Download

2017 AP 物理C電磁?？?span style="color: #ff0000;">選擇題部分免費(fèi)下載

此套題僅?p II含有簡(jiǎn)答題，

共計(jì)時(shí)45分鐘，共35題

占總分50%

可以使用計(jì)算器

僅可使用鉛筆

考試時(shí)會(huì)提供常用公式列表

部分真題預(yù)覽：

6）A copper wire of length L and diameter D dissipates energy at a rate P₀ when the current in the wire is 10 A. A second copper wire of length L has diameter 2D. What current in the second wire would dissipate energy at a rate P₀ ?

1. 2.5 A
2. 5.0 A
3. 10 A
4. 20 A
5. 40 A

14）A beam of particles travels at a right angle to a uniform magnetic field. Particles can be separated into different trajectories based on which of the following properties?

1. The charge of the particle
2. The mass of the particle
3. The velocity of the particle

1. I only
2. III only
3. I and II only
4. I and III only
5. I, II and III

16）A resistor of resistance R is connected in a circuit to two identical batteries. The circuit also contains switch S and ideal voltmeter V, as shown in the figure above. The batteries both have an emf ε and internal resistance r. The reading of the voltmeter is noted with the switch in the open position. Which of the following best represents how the voltmeter reading after the switch is closed compares to the reading before the switch is closed?

1. The reading of the voltmeter is the same.
2. The reading of the voltmeter is higher.
3. The reading of the voltmeter is lower.
4. Cannot be determined without knowing the internal resistance of the batteries.
5. Cannot be determined without knowing the emf of the batteries.

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