串联电路和并联电路是最基本的电路。对于初三刚刚学习串并联电路的学生来讲,能否准确地判断出是串联电路,还是并联电路,是比较困难的。多数情况下,可以采用“移点法”来判断电路的连接方式。所谓“移点法”就是将导线在电路里连接点的位置,在不通过其它任何电路元件的情况下,沿着导线向前或向后移动,从而使电路连接方式变得一目了然。 Series circuits and parallel circuits are the most basic circuits. For a student who has just learned series and parallel circuits in the third year, it is difficult to determine whether it is a series circuit or a parallel circuit. In most cases, you can use the “shift point method” to determine the circuit connection. The so-called “shift point method” is the position where the wire is connected in the circuit, and it moves forward or backward along the wire without passing through any other circuit element, thereby making the circuit connection pattern clear.