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1 . 如图所示,一个小型交流发电机输出端连接在理想变压器的原线圈
上,副线圈
接有阻值
的电阻,理想变压器匝数比
。已知交流发电机内匀强磁场的磁感应强度
,发电机线圈匝数
,内阻不计且线圈面积是0.4m2,发电机转动的角速度大小为5rad/s,电压表是理想电表;
(1)求电压表示数为多少?
(2)电阻
的电功率等于多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c44826e58f11a58d3a6c233fc5df2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/215b1424b299b737554386b090af8316.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/848c41cd0e11f291c714c5d62b92f928.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ef52932bd8096df4efde9ae4f8bd789.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0283ad88c9b39239c5617fcef0ef091d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f5b0c28bab2aeb7beb1cc33bbb1457.png)
(1)求电压表示数为多少?
(2)电阻
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://img.xkw.com/dksih/QBM/2022/4/8/2953522925690880/2953629759332352/STEM/d9075720-8f89-4cb1-a2f1-7975180f60c4.png?resizew=227)
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