(2011•海南)如图,E为内阻不能忽略的电池,R1、R2、R3为定值电阻,S0、S为开关,V与A分别为电压表与电流表.初始时S0与S均闭合,现将S断开,则( )A.V的读数变大,A的读数变小 B.V的读
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![(2011•海南)如图,E为内阻不能忽略的电池,R1、R2、R3为定值电阻,S0、S为开关,V与A分别为电压表与电流表.初始时S0与S均闭合,现将S断开,则( )A.V的读数变大,A的读数变小 B.V的读](/uploads/image/z/4591036-28-6.jpg?t=%EF%BC%882011%26%238226%3B%E6%B5%B7%E5%8D%97%EF%BC%89%E5%A6%82%E5%9B%BE%2CE%E4%B8%BA%E5%86%85%E9%98%BB%E4%B8%8D%E8%83%BD%E5%BF%BD%E7%95%A5%E7%9A%84%E7%94%B5%E6%B1%A0%2CR1%E3%80%81R2%E3%80%81R3%E4%B8%BA%E5%AE%9A%E5%80%BC%E7%94%B5%E9%98%BB%2CS0%E3%80%81S%E4%B8%BA%E5%BC%80%E5%85%B3%2CV%E4%B8%8EA%E5%88%86%E5%88%AB%E4%B8%BA%E7%94%B5%E5%8E%8B%E8%A1%A8%E4%B8%8E%E7%94%B5%E6%B5%81%E8%A1%A8%EF%BC%8E%E5%88%9D%E5%A7%8B%E6%97%B6S0%E4%B8%8ES%E5%9D%87%E9%97%AD%E5%90%88%2C%E7%8E%B0%E5%B0%86S%E6%96%AD%E5%BC%80%2C%E5%88%99%EF%BC%88%E3%80%80%E3%80%80%EF%BC%89A%EF%BC%8EV%E7%9A%84%E8%AF%BB%E6%95%B0%E5%8F%98%E5%A4%A7%2CA%E7%9A%84%E8%AF%BB%E6%95%B0%E5%8F%98%E5%B0%8F++++B%EF%BC%8EV%E7%9A%84%E8%AF%BB)
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