发光二极管在高中物理实验中的应用

摘要

发光二极管具有单向导电、低能耗、价格便宜、光色多样、工作电流范围大、易点亮、发光效率高等特点.用它来开发物理实验, 不但成本低, 而且新颖独特, 能很好地集中学生的注意力.%The features of light-emitting diode include unilateral conduction, low energy consumption, low price, diverse light colors and large operating current range.Besides, it can be lit up easily, and has high luminous efficiency.Exploring physics experiment with it, not only costs little, but also makes innovations, which helps the students to concentrate.