物理电学部分经常要根据题目要求设计电路.设计电路时,学生往往弄不清楚开关的位置,以及开关与用电器之间的连接关系,从而会由于一个开关的错误位置导致整个题前功尽弃.开关与用电器之间的连接关系是对整个电路整体结构的把握,因此弄清楚开关与用电器的连接方式非常重要,所以设计电路时首先要明确.下面就四种开关与用电器的连接方式进行详细说明.关系一如果某开关要控制某用电器,开关闭合,用电器工作,开关断开,用电器停止工作.就要将这个开关与它所控制 The physical electrical part is often designed according to the subject requirements of the circuit design circuit, the students often get confused about the switch position, and the switch and the connection between the electrical appliances, which will lead to the entire title due to the wrong position of a switch. The connection between the electrical appliances is the overall structure of the entire circuit to grasp, so to understand the switch and electrical connections is very important, so the circuit design must first be clear. The following four switches and electrical connections in detail Note: If a switch to control a certain electrical appliances, the switch is closed, electrical work, switch off, stop working with electrical appliances, it is necessary to control the switch and it