如图所示的电路中.闭合S,L1,L2正常发光,突然L2变亮,V读数变大,则( )A.电阻R1短路B.电阻R2短路C.灯泡L1短路D.电阻R2断路
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![如图所示的电路中.闭合S,L1,L2正常发光,突然L2变亮,V读数变大,则( )A.电阻R1短路B.电阻R2短路C.灯泡L1短路D.电阻R2断路](/uploads/image/z/13961568-48-8.jpg?t=%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%E7%9A%84%E7%94%B5%E8%B7%AF%E4%B8%AD.%E9%97%AD%E5%90%88S%2CL1%2CL2%E6%AD%A3%E5%B8%B8%E5%8F%91%E5%85%89%2C%E7%AA%81%E7%84%B6L2%E5%8F%98%E4%BA%AE%2CV%E8%AF%BB%E6%95%B0%E5%8F%98%E5%A4%A7%2C%E5%88%99%28++++++++%29A.%E7%94%B5%E9%98%BBR1%E7%9F%AD%E8%B7%AFB.%E7%94%B5%E9%98%BBR2%E7%9F%AD%E8%B7%AFC.%E7%81%AF%E6%B3%A1L1%E7%9F%AD%E8%B7%AFD.%E7%94%B5%E9%98%BBR2%E6%96%AD%E8%B7%AF)
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