4乙 An =1n·mb… n=1.3.5 n=2.4.6 4U.ch nny 丌x n=13.5 a 4.4图所示的导体槽,底面保持电位 Uo.其余两面电位为0,求槽内的电位的解。0 0 1,3,5... 4 ............... 1,3,5... 0 ...............n=2,4,6... 4 sin n n U n n b A n sh a n y U sh a n x n b a n sh a       =  =  =       =   4．4 图所示的导体槽，底面保持电位 UO．其余两面电位为0，求槽内的电位的解