题目内容
如图所示,
、
、
、
均为可变电阻,
、
均为电容器,电源的电动势为E,内阻
.若改变四个电阻中的一个阻值,则
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250031240441893.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123888327.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123904361.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123950365.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123966347.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123982339.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123997372.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003124013391.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250031240441893.png)
A.减小![]() ![]() ![]() |
B.增大![]() ![]() ![]() |
C.增大![]() ![]() ![]() |
D.减小![]() ![]() ![]() |
BD
试题分析:减小
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123888327.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123982339.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123997372.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123904361.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123950365.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123966347.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123904361.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123904361.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123950365.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123982339.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123997372.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003124543526.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123950365.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003124574452.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123904361.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123982339.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123966347.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123904361.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123950365.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123997372.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003124543526.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123982339.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123997372.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123966347.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123904361.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123904361.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123950365.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123982339.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123997372.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003124543526.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123982339.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003123997372.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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