题目内容
如图所示,AB和BC是由同种材料制成的长度相同、横截面积不同的两段导体,将它们串联后连入电路中。下列判断正确的是( )
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250016527511917.jpg)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250016527511917.jpg)
A.IAB=IBC | B.IAB<IBC | C.UAB=UBC | D.UAB>UBC |
AD
试题分析:由同种材料制成的长度相同、横截面积不同的两段导体,横截面积越大电阻越小,所以
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001652751593.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001652767502.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001652783452.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001652798548.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
练习册系列答案
相关题目
题目内容
A.IAB=IBC | B.IAB<IBC | C.UAB=UBC | D.UAB>UBC |