由于电学计算题能检查学生综合运用物理知识的能力,所以常作为压轴题出现在各地的中考卷上.下面结合具体的实例谈谈电学计算题的解答.1 善于简化复杂电路对于电路较为复杂的计算题,应对电路进行简化和改画,常用方法是:(1)电压表的电阻很大可看作断路,电流表的电阻很小可看作导线;(2)删去断路和被短接部分. Because the electrical calculation problem can examine students’ ability to use physics knowledge comprehensively, it is often used as a final issue in various local examination papers. The following specific examples to discuss the answer to electrical calculations. 1 is good at simplifying complex circuits for the circuit is more complex Calculate the problem, the circuit should be simplified and repainted, the commonly used method is: (1) the resistance of the voltmeter can be seen as a large circuit, the resistance of the ammeter can be seen as a conductor; (2) cut off the circuit and shorted part .