摘要
在球坐标下,带电上下半球面保持固定相反电势,所产生的全空间电势表达式是含有勒让德函数的无穷求和.给出了半球面上的电荷密度并计算了半球面上的电荷量.计算发现,这个电荷量是无穷大.
The electric potential produced by two hemispheres with constant and opposite potential is expressed as infinite sums of Legendre functions in spherical coordinate.The electric charge density and total charges on the hemisphere are derived.Calculation shows that the charge is infinite.
作者
邱为钢
QIU Wei-gang(Public Teaching Department,Huzhou Teacher’s College,Huzhou.Zhejiang 313000,China)
出处
《大学物理》
2021年第9期21-22,共2页
College Physics
关键词
半球面
勒让德函数
电荷密度
hemisphere
Legendre function
charge density
