1. The problem statement, all variables and given/known data Calculate the electric field at a point 2.79 cm perpendicular to the midpoint of a 2.02 m long thin wire carrying a total charge of 5.04 uC. You could integrate BUT if the wire is very long compared to the distance from the wire to where you are calculating the electric field, then the electric field will be radial and Gauss's law might be easier. 2. Relevant equations ER=λ/2piε0R 3. The attempt at a solution First I tried doing it by integral (getting E=kexQ/(x2+R2)3/2) but then it gave me the hint to use Gauss' Law, so I treated it like a cylinder, using charge divided by length for λ and 0.0279 m for R. I came out with 5.76x107 N/C which I am told is wrong. THEN I worked that to E=2keλ/R after having a "duh" moment but I still seem to be getting the wrong answer (2.58x105) Edit: calculator/math error. I solved it.