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第三讲:电通量，高斯定律和例子Lecture 3: Electric Flux, Gauss's Law, Examples |
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| 课程网址: | http://videolectures.net/mit802s02_lewin_lec03/ |
| 主讲教师: | Walter H. G. Lewin |
| 开课单位: | 麻省理工学院 |
| 开课时间: | 2008-10-10 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | //"Today we're going to work on a whole new concept and that is the concept of electric flux. We've come a long way. We started out with Coulomb's law. We got electric field lines. And now we have electric flux.// //Suppose I have an electric field which is like so and I bring in that electric field a surface, an open surface like a handkerchief or a piece of paper. And so here it is. Something like that. And I carve this surface up in very small surface elements, each with size DA, that's the area, teeny weeny little area, and let this be the normal, N roof, the normal on that surface.// //So now the local electric field say at that location would be for instance this. It's a vector..."// |
| 关 键 词: | 库仑定律; 电场; 电通量 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2019-05-25：lxf |
| 阅读次数: | 37 |