电荷的运动速度与位移电流的分布  

Speed of Charge and Distribution of Displacement Current

作　　者：梅延玲[1] 

机构地区：[1]湖北民族学院信息工程学院,湖北恩施445000

出　　处：《湖北民族学院学报（自然科学版）》2005年第3期252-254,共3页Journal of Hubei Minzu University(Natural Science Edition)

基　　金：湖北省教育厅项目资助(2001A08007).

摘　　要：应用狭义相对论理论研究了电荷运动时,随着速度的变化在空间激发的变化电场导致的位移电流的分布.当电荷的运动速度远小于光速时,空间任意点的位移电流密度矢量的大小与位置矢量r有关,且方向与电场的方向不平行;当电荷的运动速度与光速接近时,在垂直于运动平面内,位移电流密度矢量方向与速度方向相反,大小趋于无穷大,而空间其他点的位移电流密度矢量趋于零.With the special relativity,we research the changes stimulated in space and the distribution of translocated current caused by the electric field,along with the change of the electric change＇s moving speed. When the moving speed of the electric charge is far slower than velocity of light, an arbitrary point in space, whose density vector＇s quantity of translocated current is related to the place vector ,and its direction is not parallel with the direction of electric field; When its moving speed approaches the velocity of light,in a plane which is vertical to the moving direction,the density vector＇s direction of the translocated current is opposite to the direction of the speed. When the speed is fast enough and tend to be infinitely fast,now,the other points in space,whose density vector of translocated current gets close to zero.

关 键 词：位移电流假说 狭义相对论 运动电荷 电位移矢量 

分 类 号：O441.4[理学—电磁学]