题目内容
在如图所示的电路中,定值电阻的阻值为10Ω,电动机M的线圈电阻值为2Ω,a、b两端加有44V的恒定电压,理想电压表的示数为24V,由此可知( )
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250016430331852.jpg)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250016430331852.jpg)
A.通过电动机的电流为12A |
B.电动机消耗的功率为48W |
C.电动机线圈在1分钟内产生的热量为480J |
D.电动机输出的功率为8W |
BC
试题分析:定值电阻分压
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001643048809.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001643064990.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001643079168.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250016430791071.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001643111823.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250016431261387.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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