题目内容
如图所示,理想变压器的原副线圈匝数比
,副线圈与阻值为R=200
的电阻相连,原线圈两端所加的电压
,则
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250040204983192.jpg)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004020357555.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004020389333.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250040204041048.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250040204983192.jpg)
A.副线圈输出交流电的频率为50Hz | B.电阻R上消耗的电功率为200W |
C.交流电压表的示数为![]() | D.原线圈中电流的最大值为5A |
B
试题分析:变压器不改变交流电的频率,由
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250040204041048.png)
F=10Hz,A错误;由
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250040204041048.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004020560628.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004020576636.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004020607631.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004020623565.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004020638600.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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