已知电源电压不变,当电键S由闭合到断开时,两电流表的读数是---------电源----/ A2/ //---R1---电键S--/ //////A1////R2///A A1不变,A2变大B A1变大,A2变小C A1不变,A2变小D A1变小,A2不变
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![已知电源电压不变,当电键S由闭合到断开时,两电流表的读数是---------电源----/ A2/ //---R1---电键S--/ //////A1////R2///A A1不变,A2变大B A1变大,A2变小C A1不变,A2变小D A1变小,A2不变](/uploads/image/z/9627604-52-4.jpg?t=%E5%B7%B2%E7%9F%A5%E7%94%B5%E6%BA%90%E7%94%B5%E5%8E%8B%E4%B8%8D%E5%8F%98%2C%E5%BD%93%E7%94%B5%E9%94%AES%E7%94%B1%E9%97%AD%E5%90%88%E5%88%B0%E6%96%AD%E5%BC%80%E6%97%B6%2C%E4%B8%A4%E7%94%B5%E6%B5%81%E8%A1%A8%E7%9A%84%E8%AF%BB%E6%95%B0%E6%98%AF---------%E7%94%B5%E6%BA%90----%2F+A2%2F+%2F%2F---R1---%E7%94%B5%E9%94%AES--%2F+%2F%2F%2F%2F%2F%2FA1%2F%2F%2F%2FR2%2F%2F%2FA+A1%E4%B8%8D%E5%8F%98%2CA2%E5%8F%98%E5%A4%A7B+A1%E5%8F%98%E5%A4%A7%2CA2%E5%8F%98%E5%B0%8FC+A1%E4%B8%8D%E5%8F%98%2CA2%E5%8F%98%E5%B0%8FD+A1%E5%8F%98%E5%B0%8F%2CA2%E4%B8%8D%E5%8F%98)
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