如图,当S断开,甲、乙两表是电流表时,两表示数之比I甲:I乙=3:5;当S闭合,甲、乙两表是电压表时,A.两表的示数之比U甲:U乙=5:3B.两表的示数之比U甲:U乙=2:5C.R1与R2消耗的功率之比P1:
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![如图,当S断开,甲、乙两表是电流表时,两表示数之比I甲:I乙=3:5;当S闭合,甲、乙两表是电压表时,A.两表的示数之比U甲:U乙=5:3B.两表的示数之比U甲:U乙=2:5C.R1与R2消耗的功率之比P1:](/uploads/image/z/8284800-48-0.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%BD%93S%E6%96%AD%E5%BC%80%2C%E7%94%B2%E3%80%81%E4%B9%99%E4%B8%A4%E8%A1%A8%E6%98%AF%E7%94%B5%E6%B5%81%E8%A1%A8%E6%97%B6%2C%E4%B8%A4%E8%A1%A8%E7%A4%BA%E6%95%B0%E4%B9%8B%E6%AF%94I%E7%94%B2%EF%BC%9AI%E4%B9%99%3D3%EF%BC%9A5%EF%BC%9B%E5%BD%93S%E9%97%AD%E5%90%88%2C%E7%94%B2%E3%80%81%E4%B9%99%E4%B8%A4%E8%A1%A8%E6%98%AF%E7%94%B5%E5%8E%8B%E8%A1%A8%E6%97%B6%2CA%EF%BC%8E%E4%B8%A4%E8%A1%A8%E7%9A%84%E7%A4%BA%E6%95%B0%E4%B9%8B%E6%AF%94U%E7%94%B2%EF%BC%9AU%E4%B9%99%3D5%EF%BC%9A3B%EF%BC%8E%E4%B8%A4%E8%A1%A8%E7%9A%84%E7%A4%BA%E6%95%B0%E4%B9%8B%E6%AF%94U%E7%94%B2%EF%BC%9AU%E4%B9%99%3D2%EF%BC%9A5C%EF%BC%8ER1%E4%B8%8ER2%E6%B6%88%E8%80%97%E7%9A%84%E5%8A%9F%E7%8E%87%E4%B9%8B%E6%AF%94P1%EF%BC%9A)
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