题目内容
如图电路中三只电阻的阻值之比为
,两只电容器的电容之比为
,电源电动势E恒定,内阻忽略不计。当电键K断开时,稳定后电容器
、
所带的电荷量分别为
和
;当电键K闭合时,稳定后电容器
、
所带的电荷量分别为
和
。下列结论正确的是( )
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250017296613136.jpg)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001729193671.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001729349612.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001729365339.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001729411372.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001729427338.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001729489357.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001729365339.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001729411372.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001729614364.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001729645372.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250017296613136.jpg)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
B
试题分析:在电路中电容器是断路,当电键K断开时,整个电路处于断路,没有电路,电阻两端没有电压。电容器
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001729365339.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001729848365.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001729848365.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001729365339.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001729411372.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001729926526.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001729942752.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001729973894.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001729365339.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001730004434.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001730004434.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001729411372.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001730067452.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001730067452.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001730160999.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001730176999.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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