题目内容
如图所示的电路中,理想变压器原、副线圈的匝数比n1∶n2=22∶5,电阻R1=R2=25Ω,D为理想二极管,原线圈接u=220
sin100πt(V)的交流电。则
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250032071631826.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003207131344.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250032071631826.png)
A.交流电的频率为100Hz |
B.通过R1的电流为2![]() |
C.通过R2的电流为![]() |
D.变压器的输入功率为200W |
C
试题分析:原线圈接u=220
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003207131344.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003207241792.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003207256673.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003207272768.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003207303991.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003207319642.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003207334816.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250032073501407.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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题目内容
A.交流电的频率为100Hz |
B.通过R1的电流为2![]() |
C.通过R2的电流为![]() |
D.变压器的输入功率为200W |