题目内容
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115557743368.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115557759251.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115557790200.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115557806197.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115557821327.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115557837202.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115557852204.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115557868204.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115557884223.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115557884206.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558196200.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115557884223.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558196200.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558430185.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558430185.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558196200.gif)
(1)金属杆
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115557884223.gif)
(2)若
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558492475.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558508419.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558523320.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558523471.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115557884206.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115557790200.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558570265.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/2014082411555858615118.jpg)
(1)变速运动(2)
,![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558617344.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558601266.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558617344.gif)
(1)变速运动(或变加速运动、加速度减小的加速运动、加速运动)(3分)
(2)感应电动势
感应电流
杆所受的安培力
(3分)
(2分)
当
时,速度
达最大,保持不变,杆作匀速运动。
(3分)
结合
图象知:
斜率
,横轴上截距
代入数据解得
,
(4分)
(2)感应电动势
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558632302.gif)
感应电流
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558648290.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115557884223.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558664654.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558695803.gif)
当
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558804246.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558430185.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558820836.gif)
结合
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558835232.gif)
斜率
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558851651.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558866523.gif)
代入数据解得
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558601266.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115558617344.gif)
![](http://thumb2018.1010pic.com/images/loading.gif)
练习册系列答案
相关题目