已知:B=B2=0,B=6-y,D=2m/s, a=2m/s2,R=29求:E 解:(1) 8=Blu-Blv Lb =(6-)116-(y+0.21U B =(6-y)-(6-y-0.2) 16-y-6+y+0.2] 0.2=0.2×0.5×2=0.2(V) 结束目录已知：By =Bz=0, Bx= 6-y, v = 2m/s, a = 2m/s2 , R =2W 解： e =B2l v B1l v =(6-y) l v-[6-(y+0.2)] l v = lv[ (6-y) -(6-y-0.2)] = lv[ 6-y -6+y+0.2] =0.2 lv =0.2×0.5×2 =0.2(V) (1) B z x v y l b 求：ei , I 结束 目录