灵敏电流计线圈运动时电磁动量与机械动量的转化
收稿日期: 2016-04-11
修回日期: 2016-08-30
网络出版日期: 2017-04-20
基金资助
上海高校实验技术队伍建设专项资金项目: 加强创新能力培养的基础物理实验教学改革研究
Transformation between electromagnetic momentum and mechanical momentum of the pivoting coil of wire in a sensitive galvanometer
Received date: 2016-04-11
Revised date: 2016-08-30
Online published: 2017-04-20
浦天舒 , 姜若诗 , 杨波 , 宫继斌 . 灵敏电流计线圈运动时电磁动量与机械动量的转化[J]. 大学物理, 2017 , 36(4) : 17 -21 . DOI: 10.16854 /j.cnki.1000-0712.2017.04.005
In terms of the view of electromagnetic field，transformation between electromagnetic momentum and mechanical momentum in three types of the critical，over -and under -damping running of the coil of wire of a sensitive galvanometer is analyzed. It is shown that the electromagnetic momentum is proportional to the angular displacement of the coil of wire so that the electromagnetic momentum the measurement of which generally is difficult，becomes a macroscopic measurable quantity.
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