- #1
johnsch3
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q1___________Q___________q2
10cm 10cm
In the figure above the charge in the middle is Q=-3.1nC. For what charge q1 will charge q2 be in static equilibrium?
Relevant equations
I think that F=kq1q2/r^2 is relevant
my attempt at a solution
Since the ions are in equilibrium I assumed that F=0. so F2onQ=F1onQ=0
thus kQq2/r^2=kQq1/r^2
so [(9x10^9)(3.1x10^-9C)(q2)]/.1^2=[(9x10^9)(3.1x10^-9C)(q1)]/.1^2
but I'm not quite sure where to go from here or if I'm even going in the right direction. Please help!
10cm 10cm
In the figure above the charge in the middle is Q=-3.1nC. For what charge q1 will charge q2 be in static equilibrium?
Relevant equations
I think that F=kq1q2/r^2 is relevant
my attempt at a solution
Since the ions are in equilibrium I assumed that F=0. so F2onQ=F1onQ=0
thus kQq2/r^2=kQq1/r^2
so [(9x10^9)(3.1x10^-9C)(q2)]/.1^2=[(9x10^9)(3.1x10^-9C)(q1)]/.1^2
but I'm not quite sure where to go from here or if I'm even going in the right direction. Please help!