题目内容
如图所示,原、副线圈匝数比为2:1的理想变压器正常工作时( )
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241143120322211.jpg)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241143120322211.jpg)
A.原、副线圈磁通量之比为2:1 |
B.原、副线圈电流之比为1:2 |
C.输入功率和输出功率之比为1:1 |
D.原、副线圈磁通量变化率之比为1:1 |
BCD
理想变压器原副线圈的磁通量总相等(无漏磁),A错D对;输入功率总等于输出功率,C对;电流与匝数满足
,B对。
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824114312078470.gif)
![](http://thumb2018.1010pic.com/images/loading.gif)
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