题目内容
阻值为10
的电阻接到如图所示的交流电源上.以下说法中正确的是
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/2014082500524546215663.jpg)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005245430333.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/2014082500524546215663.jpg)
A.电压的有效值为10 V |
B.电阻消耗的电功率为5 W |
C.通过电阻的电流有效值为![]() |
D.电阻每秒钟产生的热量为10 J |
BC
试题分析:由U-t图象,交流电压最大值为10V,有效值
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005245493871.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250052455081014.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005245540491.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250052455551028.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005245571693.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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题目内容
A.电压的有效值为10 V |
B.电阻消耗的电功率为5 W |
C.通过电阻的电流有效值为![]() |
D.电阻每秒钟产生的热量为10 J |