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shu zhi fang xiang zhen dong guan ce de xin fang fa
Author(s): 
Pages: 40-41
Year: Issue:  4
Journal: JOURNAL OF HIGHER CORRESPONDENCE EDUCATION(NATURAL SCIENCES)

Keyword:  振动简谐振动电动势电磁感应;
Abstract: 圆柱形磁体两端连接弹簧,形成一个弹簧振子.由法拉第电磁感应定律可得:当磁体通过闭合的螺线管时,螺线管的电动势会发生变化.利用高精度的数字示波器获取螺线管的电动势,可以间接地观测弹簧振子的振动现象,这为当前中学竖直方向弹簧振子振动的观测提供一种新方法.
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