一、看实物画出电路图关键是在看图,图看不明白,就无法作好图,中考有个内部规定,混联作图是不要求的,那么你心里应该明白实物图实际上只有两种电路,一种串联,另一种是并联.串联电路非常容易识别,先找电源正极,用铅笔尖沿电流方向顺序前进直到电源负极为止.明确每个元件的位置,然后作图.顺序是:先画电池组,按元件排列顺序规范作图,横平竖直,转弯处不得有元件若有电压表要准确判断它测的是哪能一 First, see the real drawing circuit diagram is the key to see the map, do not understand the map, you can not make plans, the exam there is an internal requirement, mixed drawing is not required, then your heart should understand that the physical map is actually only two The series circuit, the other is parallel. The series circuit is very easy to identify, first find the positive power supply, with the tip of the pencil along the current direction of the order until the negative power supply. Clear the location of each component, and then drawing. The order is : Draw the battery pack, according to the order of elements to make a plan, horizontal and vertical, there must be no components at the corner If the voltmeter to accurately determine how it can be measured