题目内容
三个点电荷电场的电场线分布如图所示,图中a、b两点处的场强大小分别为Ea、Eb,电势分别为
、
,则( )
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/2014082412524195015005.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824125241560384.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824125241576394.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/2014082412524195015005.png)
A.Ea>Eb ,![]() ![]() |
B.Ea<Eb ,![]() ![]() |
C.Ea<Eb ,![]() ![]() |
D.Ea>Eb ,![]() ![]() |
A
a点的电场线比b的电场线密集,Ea>Eb,沿着电场线电势逐渐降低,故故
<
。
故选A。
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824125241560384.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824125241576394.png)
故选A。
![](http://thumb2018.1010pic.com/images/loading.gif)
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题目内容
A.Ea>Eb ,![]() ![]() |
B.Ea<Eb ,![]() ![]() |
C.Ea<Eb ,![]() ![]() |
D.Ea>Eb ,![]() ![]() |