- #1
Radanie
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Homework Statement
A -3.2 { nC} charge is on the x-axis at x_1 = -9 {cm} and a 14.6 {nC} charge is on the x-axis at x_2 = 16 {cm}.
***At what point or points on the y-axis is the electric potential zero?
Homework Equations
(1/4*pi*epsilon_0)*[(q1/r2) + (q2/r2)] = 0V
The Attempt at a Solution
The way I've tried solving it is by setting (q1/r2) = (q2/r2)
So 3.2*sqrt((16 cm)^2 + y^2) = 14.6*sqrt((-9 cm)^2 + y^2)
Eventually getting -14644.52 = 202.92 y^2
And y = +/- 8.5
Unfortunately this answer isn't being marked as correct. Does anyone see something wrong with the way I'm trying to solve this?