重大光电学院复试整理资料

1、重庆大学光电工程学院复试电磁学试题 和复试面试指导一. 填空题（50 分）1.电磁感应强度的单位： 2.一线密度为l的圆环，其中心处的电场强度： 电势： 3.安培环路定理： ；用公式表示为： 4.毕奥-萨法尔定理： ；用公式表示为： 5.一均匀分布电荷圆盘，被挖掉一个同心小圆盘后，其中心电势如何变化？（变大、变小、还是不变？） 6.通过某一曲面S的磁通量表示为： 7.磁场高斯定理： 用公式表示为 8.电势与电场强度的积分关系表达式： 两者的微分关系表达式： 9.麦克斯韦方程组积分形式： ； ； ； ；微分形式： ； ； ；三个描述各向同性介质性质的方程： ； ； 10.某沿Z 向的长直导线的周

2、围电势分布为：=Aln(x2+y2),则其电场强度:Ex= ,Ey= 11.某均匀带电体的电场分布表达式： 某均匀带电面的电场分布表达式： 某均匀带电线的电场分布 12.静电场高斯定理： 公式表达式： 13.电流连续性方程： 含义： 14.洛伦兹力是： 公式表达式： 15.某平面载流线圈的磁矩是指： 公式表达式： 16.光速的公式表达式： 其E与H的关系： 坡印亭矢量表达式： 含义： 17.法拉第电磁感应定律： 公式表达式： 18.带电体的尺寸比线度小很多时，带电体可以视为： 二.选择题（30 分，每题3 分）1. 正三角形三个顶点分别放电荷Q，2Q，3Q，求其中心（距顶点距离为L）处的一个点

3、电荷被移动到最远处时，则正三角形对其作的功为（ ）A、6Q/（4L） B、4Q/（4L） C、3Q/（4L） D、Q/（4L）2.两个平行的相距为L的面积为S 的电极板，分别带电荷为：Q，2Q，介电常量为，则两极板电势差为（ ）A、QL/（S） B、QL/（2S） C、2QL/（S） D、QL/（3S）3.平行板电容器带电荷为：Q，-Q，面积为S，间距为d，求其极板被拉到2d时，外力做的功为（ ）A、dQ2/(S） B、dQ2/(2S） C、dQ2/(3S） D、3dQ2/(S）4.平行板电容器带电荷为：Q，-Q，面积为S，间距为d，则其中一个电极板对另一个电极板的作用力为（ ）A、2Q2 d

4、/（S） B、2Qd/（S） C、Q2/（S） D、Q2 /（2S）5.静电场高斯定理，正确理解的是（ ）A、电场线一定是闭合的B、某闭合曲面上的电场强度仅仅与其内部的净电荷有关C、某闭合曲面上的电场强度数值上仅仅与其内部的净电荷有关D、电场线可以相交6.均匀电场线上的两点电场强度E和电势的关系？（ ）A、越大，E越大 B、越大，E越小 C、电场线越密，电势越大 D、没有关系7.关于电场和磁场的关系，正确的是（ ）A、均匀电场周围有着恒定的磁场 B、均匀磁场周围有着恒定的电场C、交变电场周围有着恒定的磁场 D、交变磁场周围有着恒定的电场8.关于霍尔效应，说法正确的有（ ）A、霍尔电压的方向与载

5、流子的种类无关 B、载流子浓度越大霍尔电压越大C、霍尔电压与薄片的宽度无关 D、金属元件比半导体元件的霍尔电压的数值大9.关于带电粒子在垂直于均匀磁场方向的平面上运动，说法正确的是（ ）A、电子和质子的运动半径相同 B、核质比相同的粒子的回旋周期一定相同C、回旋周期与粒子速度成反比 D、运动半径和粒子速度成正比10.关于恒定电流，下列说法错误的是（ ）A、电子的漂移速度与电场的传播速度相同B、沿任何闭合回路的电势降落的代数和为0C、其电荷分布不随时间改变D、沿任何闭合曲面的电流密度的通量为0三.计算题（20 分，每题10分）1.一个厚度为0.5cm 的无限均匀带电板，电荷密度为1.2E-6(c

6、/m3),(1)求距其表面0.1cm处的电场强度;(2)求其表面外的电场强度；2.一个圆形线圈A 由50 匝细线绕成，截面积4.0cm2,放在另一个匝数为100，半径为20.0cm 的圆形线圈B 的中心，两线圈同轴。求：（1）两线圈的互感系数；（2)当线圈A 中的电流以50A/s 的变化率减少时，线圈B 内的磁通量的变化率；（3）线圈B的感生电动势；复试面试常见问题！英语：1你来自那个学校？2什么专业？3你的学校所在城市有啥景点（signpoints）？4业余时间干什么？5对于公共场合抽烟你怎么想？6关于奥运会利弊？7介绍一下你自己？8谈谈你的未来打算？9香港电影发展快的原因10你对911事件

7、后美国政府的行为持什么态度？11课余干什么？12如果你看到李晓红校长，你会对他说什么？13看比尔盖茨？14怎样看待国际人才？16喜欢什么课程？17你上网一般干什么啊？18在图书馆借什么书？19为什么要靠研究生？20为什么要选择这个专业？21你为什么考这个学校？22说一下你的职业规划?专业问题：1你是哪个学校的？你们学校情况怎么样啊？2学校有多少硕士点？你们学院有多少硕博点？3学过那些课程？4什么是光谱？5可见光的么是波长范围？6PMT是什么？干什么用的？什么原理？7EDA编辑软件是什么？说出几个？8DSP用的什么编辑软件？是什么？9光的检测方式？10HeNe激光器波长多少？11相干检测是怎么回

8、事？12毕业设计是做什么的？做的怎么样了？（很重要，答的好什么都OK啦，说详细点，就少问你几个问题，如果你搞的是综述方面的论文最好就免谈了）13 什么是链表？14计算机构成？15普通光源的特点？16防眩晕灯的原理？17半波损失是什么？18光的本质？19全反射的原理和应用？20菲涅尔衍射？21干涉条件？22时序和逻辑电路的区别？23.相干光源和普通光源的区别？24实验题：用示波器怎么测频率，周期等？25计算机由什么组成？26误差有哪几类？怎么检测？27你未来五年有什么打算？28防眩晕灯是什么原理及其和半波损失的关系？29精密机械中零件的主要技术指标是什么？30 PN结的性质与原理？31光电倍增管

9、是干什么用的？32对专业硕士和学术硕士的看法?33零点飘移?大家都把自己以前面试的问题发两个上来，让学弟学妹们参考参考吧(注：光就是光学类的定义啦，区别啦，实验条件啦。电就是电子技术。计算机 就是计算机硬件。中文题涵盖了模电数电和硬件)( 一点经验，多了解点光电方面的知识，不需要深，而是要广,他们问的基本上很多都是专业课没学的，或者学了，但是不是重点，平时没留意)1 Selfintroduce（自我介绍）Good morning /afternoon, my dear teachers, my dear professors. I am very gald to be here for you

10、r interview. my chinese name is which was given me by my parents. symbolizes peace, health and happiness.I also have an English name. my English name is which was given me by my a college English teacher who came from . represents a childish. In my teachers eye, I am a child forever.I am 24 years ol

11、d. I come from city. My undergraduate period will be accomplished in university in July this year. Now I am trying my best for obtaining a key to this university.Generally speaking I am a hard working student especially do the thing that I am interested in. I will try my best to finish it no matter

12、how difficult it is. when I was sophomore, I found web design was very intertesting.so I learnd it very hard.To weaver a homepage for myself ,I stayed with my personal computer half a month.And I am the first one in our class who own his homepage.Furthermore I am a person with perseverance because I

13、 firmly believe that persevercance can sometimes equal genius. just like an old proverb goes, there are only two creatures who can mount the pyramids the eagle and the snail.During the days preparing for the first examination, I insist on running everyday no matter what the weather was like. And jus

14、t owing to this ,I could concentrate on my study and succeed in the end.Well, in my spare time, I like basketball, Chinese chess and pingpong. English is also my favorite. So I often go to English corner to practice my oral English and write compositions to improve my written ability but I know my E

15、nglish is not good enough. so I will continue studying English hardOk, thats all, thank you for your attention, my god bless you.2 The reason for my choice(为什么要考研)I have been deeply impressed by the academic atmosphere when I came here last summer. In my opinion， as one of the most famous university

16、 in our city，It provides people with enough room to get further enrichment .I think this is my first reasonThe second one is I am long for doing some research in this universiy throughout my life . Its a pleasure to be with my favorite scientifical research for my life-time. I suppose this is most i

17、mportant factor in my decision.Thirdly, I think further study is still urgent for me to realize myself vaule. Life is precious, one time for everyone including me. So it is necessary to seize any opportunity for self-development,espcially in the competitive modern world.3 plan in the postgraduate (研

18、究生期间的计划)Well， thank you for question。 I hope I can form systematic view of 大专业词汇 . As for 专业 ， especially 研究方向 ， my express wish is to get to complete comprehension of formation and development as well as potential economical value. If possible, I will go on with my study for doctorate degree.In a w

19、ord I am looking forward to making a solid foundation for further profession after three yeas study here.4 my family (我的家庭)There are six members in my family. My grandfather，my parents my sister，my bother and me. My father is a agent of china life assurance limited company. So he often goes out on b

20、usiness.Its obvious to most of us and people around us that most of housework is done my industrious mom. Both my sister and my brother are doctor in my hometown in order to take care of our big family. Mounting at the weekends is our common interest. The fresh air and natural beauty can help us get

21、 rid of tiredness. They also can strengthen our relaxation. During preparing for coming here,my grandfathers my parents my sisters my brothers love and support have always been my power. So I hope in the future I will able to repay them.5 my hometown ChongQing city(我的家乡)（material source：HYPERLINK /

22、I am from a famous city with a long history over 1000 years 城市名字 city. The city lies in southwestern of china and she also is the center of industry and economy in southwestern chinaNow，indeed ，chongqing city is the bigest city in china in terms of area and population.In addition , 城市名字 is a popular

23、 destination for travelers with her hilly slopes, night views, rivers ,fog and hotpot. As the matter of fact , owing to rivers and fog, it maybe said without fear of exaggeration that城市名字 is a natural wonder. So it is pleasant to visit the city in any season except in summer. Because you know chongq

24、ing is unbearably hot during the summer.In a word , I love my hometown城市名字 city more than people around me can imagin. I was born in this city and her culture have been having a profound influence on my life as well as my work.6 my university (我的大学)你的大学名字 is one of the oldest univeristy in henan pro

25、vinceIt was founded in 1908 and covers an area of 2500 mu. The building area coves about 1000 mu. It develops into a comprehensive university with the efforts of generations especially after the reform and opening up. It takes lead among the same species universities with nice teaching and scientifical research ability. The labrary has a storage of 1.5 million books. And various research institutes are set up including 32 scientifical research center. There are teaching research ex