浙江大学大学物理甲下 04-05冬期末试卷

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浙江大学2004-2005学年冬季学期

《Physics (Ⅱ)》课程期末考试试卷

开课学院:理学院 考试形式:闭卷,允许带非存储计算器、纸质词典入场

考试时间:2005年 1月21日 所需时间120分钟

姓名_______专业 学号 组号 任课教师

浙江大学大学物理甲下 04-05冬期末试卷

浙江大学大学物理甲下 04-05冬期末试卷

Permittivity constant ε0=8.85⨯10-12C 2/(N ⋅m 2) Electronic volt 1eV=1.6⨯ 10-19J Permeability constant μ0=4π⨯10-7H/m Mass of an electron m e =9.11⨯ 10-31kg

Ⅰ. Multiple choices (there is one correct answer only):

1. The electric charge on a conductor is

A. Uniformly distributed throughout the volume.

B. Confined to the surface and is uniformly distributed.

C. Mostly on the outer surface, but is not uniformly distributed.

D. Entirely on the surface and is distributed according to the shape of the object.

E. Distributed throughout the volume of the object and distributed according to

the object ’s shape.

2.* You are given a closed circuit with radii a and b , as shown in the Fig. , carrying current i . The magnetic dipole moment of the circuit is:

A. 4

)(22b a i +π.

B. )(22b a i +π

C. 2

)(22b a i +π.

D. )(b a i +π. .

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