1 . 图甲中的变压器为理想变压器,其原线圈接到有效值为
的正弦交流电源上,副线圈与阻值为
的电阻
接成闭合电路,图乙中阻值为
的电阻
直接接到电压为
的直流电源上,电阻
消耗的电功率为__________
;若发现
与
消耗的电功率恰好相等,则变压器原、副线圈的电压之比为___________ 。
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8260c79d7294a07e910c4d7290fa290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76caa19ec164ba47b2ff45eb4a7a1f87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efc18a5bb2e53586331b2a58538a48b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e026d623be7e552212f5130bc195f771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f20f21a9d50b61dac519a3ddab539d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8260c79d7294a07e910c4d7290fa290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f20f21a9d50b61dac519a3ddab539d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/811ddb62dded70f279710ae6c0fdbb80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efc18a5bb2e53586331b2a58538a48b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f20f21a9d50b61dac519a3ddab539d.png)
![](https://img.xkw.com/dksih/QBM/2021/5/3/2720055782768640/2722938055450624/STEM/0b6c3c52-5a10-4109-8d5d-c5152596e213.png?resizew=271)
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2021-05-17更新
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109次组卷
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6卷引用:贵州省安顺市第三高级中学2020-2021学年高二下学期第一次月考物理试题