如图所示的空载变压器,已知一次侧的L1=0.004H,R1=50Ω,二次侧的L2=0.008H,R2=200Ω,两绕组间互感M=0.004H。一次侧接电压源us=√2×100sin105tV,二次侧的负载Z=(1000+j800)Ω。求一次侧电流I1,电压源输入到变压器的功率,变压器输出到负载的功率及变压器传输效率。
正确答案:![](https://img.274949.com/Images/2020-04/10/dera3rqa.jpg)
![](https://img.274949.com/Images/2020-04/10/vg9th0rg.jpg)
![](https://img.274949.com/Images/2020-04/10/dera3rqa.jpg)
![](https://img.274949.com/Images/2020-04/10/vg9th0rg.jpg)
答案解析:有
![](/editor/images/201705/qrcode_for_gh_573e2a458573_258.jpg)
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如图所示的空载变压器,已知一次侧的L1=0.004H,R1=50Ω,二次侧的L2=0.008H,R2=200Ω,两绕组间互感M=0.004H。一次侧接电压源us=√2×100sin105tV,二次侧的负载Z=(1000+j800)Ω。求一次侧电流I1,电压源输入到变压器的功率,变压器输出到负载的功率及变压器传输效率。
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