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 <span class="TitlePageSM">第17章 (欧姆定律) 第1节 1701电流与电压和电阻的关系</span> </center>
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&nbsp;&nbsp;&nbsp;&nbsp;电压是产生电流的原因，由此可以想到：电压越高，电流可能越大；电阻表示导体对电流的阻碍作用，电阻越大，电流会越小。那么，流过导体的电流与导体的电阻及加在它两端的电压存在怎样的定量关系呢？
  
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人教版九年级物理上册17.1节《电流与电压和电阻的关系》微课视频​|知识点|练习
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