如图所示,正方形导线框必
处于匀强磁场中绕中心轴
匀速转动时,产生的电动势
。线框的输出端与理想变压器原线圈相连,副线圈连接着一只“
、
”的灯泡,且灯泡能正常发光,电路中熔断器熔断电流为
,正方形导线框电阻、熔断器、输电导线的电阻均不计。下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/2020/12/23/2620494189240320/2621947285053440/STEM/37dba8b5-d2f3-4405-b441-d340d3283b75.png?resizew=269)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19d1c81abfeaae2c846f5bc3ba342afa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89cb5e9b20938958c042b371ff806bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71cc6c8839f29a02ae5289acf03f2c16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3839fd7fb0ba27f3e68ca3ca44c522c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af0c75782ea31248ed96108f17373b62.png)
![](https://img.xkw.com/dksih/QBM/2020/12/23/2620494189240320/2621947285053440/STEM/37dba8b5-d2f3-4405-b441-d340d3283b75.png?resizew=269)
A.![]() |
B.理想变压器原、副线圈匝数之比为![]() |
C.若副线圈两端并联多只“![]() ![]() |
D.若线框转速减半,其它条件不变,产生的电动势为![]() |
更新时间:2020-12-25 19:48:19
|
【知识点】 变压器原理与结构
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