• 2022-06-03
    一均匀静电场,电场强度,(x、y以米计)则点a(3,2)和点b(1,0)之间的电势差为https://p.ananas.chaoxing.com/star3/origin/aab0a255b9dc2885ff0a1ba1794e6436.pnghttps://p.ananas.chaoxing.com/star3/origin/02e544485b7d0a372045d5958b61302b.png