题目内容
图是某导体的伏安特性曲线,由图可知( )
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001417812884.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001417812884.png)
A.导体的电阻是25![]() |
B.导体的电阻是0.04![]() |
C.当导体两端的电压是10V时,通过导体的电流是0.4A |
D.当通过导体的电流是0.1A时,导体两端的电压是2.5V |
ACD
试题分析:由电阻的定义可知
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001417874823.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001417874845.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001417905786.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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题目内容
A.导体的电阻是25![]() |
B.导体的电阻是0.04![]() |
C.当导体两端的电压是10V时,通过导体的电流是0.4A |
D.当通过导体的电流是0.1A时,导体两端的电压是2.5V |