作者paul112004 (Paul Nancy)
看板NTU-Exam
标题[试题] 98下 吴俊辉 普通物理学甲下 期中考(1)
时间Wed Apr 21 19:03:37 2010
课程名称︰普通物理学甲下
课程性质︰系上必修
课程教师︰吴俊辉
开课学院:电机资讯学院
开课系所︰资讯工程学系
考试日期(年月日)︰2010/04/21
考试时限(分钟):110 min
是否需发放奖励金:是
(如未明确表示,则不予发放)
试题 :
1.
In the circuit shown here. R1 = 1.00 MΩ, R2 = 2.00 MΩ, and C = 1.00μF.
The capacitor is initially without charge on either plate.
At t = 0, switch S is closed, and t = 2.00 s, switch S is opened.
(60%)
(a) Sketch a graph of the circuit in R2 between t = 0 and t = 10.0 s.
(b) Find the voltage across the capacitor at t = 8.00 s.
(c) 画出自 t = 0 至 t = 10.0 s 过程中,
电路上自 t = 0 起所消耗之总热能随时间 t 的变化。
╱ S
┌─ ───┬─────┐
│ │ │
│ 9.00 V │C │
▔▔ ┴ │
__ ┬ │
│ │ │
│ │ │
└──﹏──┴──﹏──┘
R1 R2
2.
下图所示的电阻为多少?(10%)
┌┬┬┬┬─┬┬────┐
│││││ ││ │
│││││ ││ │
│││││ ││ │
└┴┴┴┴─┴┴────┘
褐黄绿 红
Colors Numeral
Black = 0
Brown = 1
Red = 2
Orange = 3
Yellow = 4
Green = 5
Blue = 6
Violet = 7
Gray = 8
While = 9
Tolerance
Brown = 1%
Red = 2%
Gold = 5%
Silver = 10%
None = 20%
3.
画出莱顿瓶的结构,并说明其充电及放电的原理。(15%)
4.
将一极小的 electric dipole 置於一个非导体正圆球壳的球心,正极朝上。
试画出通过球壳的电力线(以球壳侧视图表示),并选取球壳为高斯面
(Gaussian Surface),以这些电力线说明高斯定理(Gauss's Law)。(15%)
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