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一、探究串联电路的电流规律1.实验电路:2.实验步骤:(1)按实验电路图连接电路(电流表暂不接入电路);(2)检查电路,确认正确后闭合开关,看小灯泡是否正常发光;(3)在电路中选择三点A、B、C,分别将电流表接入电路,闭合开关后记录电流表的示数;(4)换用不同规格的小灯泡重复这个实验。结论:串联电路中,各点电流都相等,即IA=IB=IC。二、探究并联电路的电流规律
First, to explore the current law of the series circuit 1. Experimental circuit: 2. Experimental steps: (1) according to the experimental circuit to connect the circuit (ammeter temporarily connected to the circuit); (2) check the circuit to confirm the correct closure of the switch to see a small bulb Is the normal light; (3) Select three points in the circuit A, B, C, respectively, the ammeter connected to the circuit, the switch is closed after recording ammeter shows the number; (4) for different specifications of the small bulb repeat this experiment. Conclusion: The series circuit, the current at each point are equal, that IA = IB = IC. Second, explore the current law parallel circuit