电感和电容对交变电流影响实验的改进

Improvements on the experiment of the effect of inductance and capacitance on alternating current

自制演示实验板,将电感实验和电容实验器件制作在同一电路板上,通过切换开关做不同类型的实验.增加对照灯,利用智能手机记录光照度,对比实验灯所在支路接入电感或电容时实验灯和对照灯的亮度,学生可以直接观察电路中电流的变化.

An experimental demonstration board was made with the inductance and capacitance placed on the same circuit board.Different types of experiments were carried out.Reference lamb was introduced into the demonstration board,and the illuminance of lamps was test by smart phone.By comparing the illuminance of the reference lamp and the experiment lamb when inductance or capacitance was introduced,students could directly observe the change of alternating current.