题目内容
图甲电路中交流电源电压随时间的变化规律如图乙所示.若电阻为R=100Ω,则理想电流表和电压表的示数分别为( )
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250004329824581.jpg)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250004329824581.jpg)
A.1.41A 200V | B.1.41A 141V | C.2A 200V | D.2A 141V |
B
试题分析:理想电流表和电压表的示数均为有效值,题中图象为正弦式交变电流,故
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000433014895.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000433045733.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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题目内容
A.1.41A 200V | B.1.41A 141V | C.2A 200V | D.2A 141V |