2009届北京市海淀区第二学期九年级期中练习 物理试卷16题16.如图8所示,电源两端的电压保持不变,R0为定值电阻.将滑动变阻器的滑片P置于最右端,闭合开关S.移动滑动变阻器的滑片P到某一位
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![2009届北京市海淀区第二学期九年级期中练习 物理试卷16题16.如图8所示,电源两端的电压保持不变,R0为定值电阻.将滑动变阻器的滑片P置于最右端,闭合开关S.移动滑动变阻器的滑片P到某一位](/uploads/image/z/1254107-11-7.jpg?t=2009%E5%B1%8A%E5%8C%97%E4%BA%AC%E5%B8%82%E6%B5%B7%E6%B7%80%E5%8C%BA%E7%AC%AC%E4%BA%8C%E5%AD%A6%E6%9C%9F%E4%B9%9D%E5%B9%B4%E7%BA%A7%E6%9C%9F%E4%B8%AD%E7%BB%83%E4%B9%A0+%E7%89%A9%E7%90%86%E8%AF%95%E5%8D%B716%E9%A2%9816%EF%BC%8E%E5%A6%82%E5%9B%BE8%E6%89%80%E7%A4%BA%2C%E7%94%B5%E6%BA%90%E4%B8%A4%E7%AB%AF%E7%9A%84%E7%94%B5%E5%8E%8B%E4%BF%9D%E6%8C%81%E4%B8%8D%E5%8F%98%2CR0%E4%B8%BA%E5%AE%9A%E5%80%BC%E7%94%B5%E9%98%BB.%E5%B0%86%E6%BB%91%E5%8A%A8%E5%8F%98%E9%98%BB%E5%99%A8%E7%9A%84%E6%BB%91%E7%89%87P%E7%BD%AE%E4%BA%8E%E6%9C%80%E5%8F%B3%E7%AB%AF%2C%E9%97%AD%E5%90%88%E5%BC%80%E5%85%B3S.%E7%A7%BB%E5%8A%A8%E6%BB%91%E5%8A%A8%E5%8F%98%E9%98%BB%E5%99%A8%E7%9A%84%E6%BB%91%E7%89%87P%E5%88%B0%E6%9F%90%E4%B8%80%E4%BD%8D)
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