学生初接触到电磁波的知识,兴趣很浓,求知欲极高.根据麦克斯韦的电磁理论:“变化的磁场能够在其周围空间产生电场,变化的电场能够在其周围产生磁场……”学生都希望能做些实验来验证电磁波的存在和传播,下面的几个小实验,提供同行参考. Students were initially exposed to electromagnetic wave knowledge with a strong interest and high curiosity. According to Maxwell’s electromagnetic theory, “A changing magnetic field can generate an electric field in its surrounding space, and a changing electric field can generate a magnetic field around it...” Students hope that Can do some experiments to verify the existence and spread of electromagnetic waves, following a few small experiments to provide peer reference.