题目内容
理想变压器连接电路如图甲所示,已知原副线圈匝数比为10∶1,当输入电压波形如图乙时,电流表读数2 A,则( )
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241330011003851.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241330011003851.png)
A.电压表读数282 V |
B.电压表读数28.2 V |
C.输入功率为56.4 W |
D.输入功率为40 W |
D
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824133001147636.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241330011781112.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824133001209728.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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题目内容
A.电压表读数282 V |
B.电压表读数28.2 V |
C.输入功率为56.4 W |
D.输入功率为40 W |