Answer:
Forces on the test (test is positive) charge
Σ Fx = 0 net result of x-compoment charges is zero
Σ Fy = 2 F sin θ where F is the force due to the distance of the test charge from one of the charges and sin θ is the component of that force that is perpendicular to the line separating the charges
The direction of the force is perpendicular to the line separating the two given charges
