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一、知识结构欧姆定律实验电阻一定时 ,导体中的电流跟电压的关系电压一定时 ,导体中的电流跟电阻的关系内容与公式 (掌握 )应用实验 :用伏安法测电阻 (会 )推导串联电路总电阻的特点 : Ｒ =Ｒ1 +Ｒ2 (理解 )并联电路总电阻的特点 : 1Ｒ=1Ｒ1+ 1Ｒ2(知道→理解 )二、复习指
First, the knowledge structure Ohm’s law When the resistance of a certain experiment, the relationship between the current and voltage in the conductor when the voltage is constant, the relationship between the current and resistance in the conductor Contents and formulas (Master) Application Experiment: Use the volt-ampere method to measure the resistance (will) derivation Series resistance of the total circuit characteristics: R = R1 + R2 (understand) the characteristics of the total resistance of the parallel circuit: 1R = 1R1 + 1R2 (know → understand) Second, review means