摘要
分析了光电效应实验中阳极光电流和阴极光电流的形成机理.探索了二者之间的关系.阳极光电流值的K倍与阴极光电流值关于原点对称,因此当K足够大时,用电压大于0时的实测电流值代替阴极光电流值,可以求得电压小于0时的阳极光电流值.
The mechanism of anodic and cathodic photocurrent in photoelectric effect experiment was analyzed, and the relationship between them was researched. Because of the mirror symmetry be- tween K times the anodic photocurrent intensity and the cathodic photocurrent intensity, the cathodic photocurrent could be replaced by the measured current intensity when K was large enough and the voltage was greater than zero. Thus the anodic photocurrent value could be calculated when the volt- age value was less than zero.
出处
《物理实验》
2012年第1期6-9,共4页
Physics Experimentation
关键词
阳极光电流
阴极光电流
光电效应
anodic photocurrent
cathodic photoeurrent
photoelectric effect
