一道物理初三电学填空题,23.如图7所示的电路中,电源两端的电压不变.闭合开关S,当滑动变阻器的滑片滑到某一位置时,电压表示数为6V,电阻R1与滑动变阻器消耗的电功率之和为P1;当滑动变阻
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![一道物理初三电学填空题,23.如图7所示的电路中,电源两端的电压不变.闭合开关S,当滑动变阻器的滑片滑到某一位置时,电压表示数为6V,电阻R1与滑动变阻器消耗的电功率之和为P1;当滑动变阻](/uploads/image/z/7120359-63-9.jpg?t=%E4%B8%80%E9%81%93%E7%89%A9%E7%90%86%E5%88%9D%E4%B8%89%E7%94%B5%E5%AD%A6%E5%A1%AB%E7%A9%BA%E9%A2%98%2C23%EF%BC%8E%E5%A6%82%E5%9B%BE7%E6%89%80%E7%A4%BA%E7%9A%84%E7%94%B5%E8%B7%AF%E4%B8%AD%2C%E7%94%B5%E6%BA%90%E4%B8%A4%E7%AB%AF%E7%9A%84%E7%94%B5%E5%8E%8B%E4%B8%8D%E5%8F%98.%E9%97%AD%E5%90%88%E5%BC%80%E5%85%B3S%2C%E5%BD%93%E6%BB%91%E5%8A%A8%E5%8F%98%E9%98%BB%E5%99%A8%E7%9A%84%E6%BB%91%E7%89%87%E6%BB%91%E5%88%B0%E6%9F%90%E4%B8%80%E4%BD%8D%E7%BD%AE%E6%97%B6%2C%E7%94%B5%E5%8E%8B%E8%A1%A8%E7%A4%BA%E6%95%B0%E4%B8%BA6V%2C%E7%94%B5%E9%98%BBR1%E4%B8%8E%E6%BB%91%E5%8A%A8%E5%8F%98%E9%98%BB%E5%99%A8%E6%B6%88%E8%80%97%E7%9A%84%E7%94%B5%E5%8A%9F%E7%8E%87%E4%B9%8B%E5%92%8C%E4%B8%BAP1%EF%BC%9B%E5%BD%93%E6%BB%91%E5%8A%A8%E5%8F%98%E9%98%BB)
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