常规实验:重点注意密度的测量、伏安法测量电阻、电功率，影响滑动摩擦力的因素，影响压力作用效果的因素，滑轮组、斜面的机械效率，动能的影响因素,电压、电阻、电流的关系,电磁铁的磁性强弱的因素，电阻产生热量和哪些因素有关
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