"A point charge of 3*10^-6 C is at the origin and another point charge of -4*10^06 C is at point 0.1m away along the x axis.
What is the magnitude and direction of the electric field at point 0.15m from the origin along the posting y-axis?
The Attempt at a Solution
Electric Field from the first charge to the point on the Y axis:
E1 = (3*10^-6)/(4PIε°*0.15^2)
Electric Field from the Second charge to the point on the Y axis:
E2 = (-4*10^-6)/(4PIε°*0.18^2)
Magnitude Of Electric Field = E1+E2=88808N/C
Direction is 158 Degrees from the X(got this from the vectors)
This is my answer, my physics is really rusty and I have a gut feeling I've gone completely wrong. A checking and assistance would be appreciated.