Ramesh V
Last Activity: 15 Years ago
Electric potential due to a point charge =
The electrical potential due to point charges
so let (x,y) be th e locus of point net potential at point is zero
V(x,y,z)= 0
[Q / k.((x-3a)2 + y2 )1/2 ] + [ -2Q / k.((x+3a)2 + y2 )1/2 ] = 0
4*((x-3a)2 + y2 )1/2 - ((x+3a)2 + y2 )1/2 = 0
The locus is a circle : x2 + y2 +9a2 -10.a.x = 0