有一个负载电阻值为
,当将它接在
的直流电源上时,消耗的电功率为
,若将
接在图中的变压器的次级电路中消耗的电功率是
,已知变压器的输入电压
的最大值为
,求此变压器的原、副线圈的匝数之比( )
![](https://img.xkw.com/dksih/QBM/2018/7/26/1996842949156864/1997385160065024/STEM/d99f3c805a9b41f6bda179c3e7e99cbb.png?resizew=220)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71cc6c8839f29a02ae5289acf03f2c16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/459b26b8a4ae77f815ee37ed90ea8d25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caa55bc54cd6c2dc5ff0f125ac1a2ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661889b54af6dab58b2f11ffe75ad463.png)
![](https://img.xkw.com/dksih/QBM/2018/7/26/1996842949156864/1997385160065024/STEM/d99f3c805a9b41f6bda179c3e7e99cbb.png?resizew=220)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2018-04-02 22:09:47
|
【知识点】 理想变压器两端电压与匝数的关系
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