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熟练掌握解答初中物理电路计算题的方法是培养学生分析能力的有效途径.通过对电路的分析识别串、并联电路,分析各电表所测量的物理量,根据欧姆定律和串、并联电路的电压、电流、电阻关系及分压、分流规律列式计算出所求的物理量,从而掌握“四步法”解答初中物理电路计算题的方法.
Proficiency in solving the problem of physics calculation circuit of junior high school is an effective way to train students’ analytical ability.According to the circuit analysis and identification of series and parallel circuits, the physical quantities measured by each meter are analyzed. According to Ohm’s law and series and parallel circuit voltage and current , The relationship between resistance and partial pressure, shunt law formula calculated by the physical requirements, in order to master “four-step ” method to solve junior high school physics circuit calculation questions.