题目内容
A、B两闭合圆形导线环用相同规格的导线制成,它们的半径之比rA:rB=2:1,在两导线环包围的空间内存在正方形边界的匀强磁场区域,磁场方向垂直于两导线环的平面,如图所示.当磁场的磁感应强度随时间均匀增大的过程中,求两导线环内所产生的感应电动势之比 流过两导线环的感应电流之比 。
1∶1 1 ∶2
分析:根据法拉第电磁感应定律E="n"
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824123647977419.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824123648024522.png)
解:根据法拉第电磁感应定律E=n
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824123647977419.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824123648024522.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824123648180441.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824123648211356.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824123648211440.png)
故答案为:1:1,1:2.
![](http://thumb2018.1010pic.com/images/loading.gif)
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