利用灵敏电流计研究电磁动量  

Research on electromagnetic momentum by sensitive galvanometer

作　　者：浦天舒[1] 姜若诗 杨波[1] 宫继斌 

机构地区：[1]东华大学理学院,上海201620

出　　处：《物理实验》2017年第2期17-19,23,共4页Physics Experimentation

摘　　要：从场的观点,分析灵敏电流计线圈在临界阻尼运动状态下电磁动量与机械动量的转化情况.由于电磁动量正比于线圈偏转时的角位移,使难以测量的电磁动量成为宏观上的可观测量.Transformation between electromagnetic momentum and mechanical momentum in the critical running of the coil of a sensitive galvanometer was analyzed in terms of electromagnetic field.It was shown that the electromagnetic momentum was proportional to the angular displacement of the coil so that the electromagnetic momentum,the measurement of which is generally difficult,became a macroscopically measurable quantity.

关 键 词：灵敏电流计 电磁动量 机械动量 

分 类 号：O441.5[理学—电磁学]