1. The problem statement, all variables and given/known data (Just for number 1 only - finding electric field) 2. Relevant equations dE = k dq/R^2 sin theta = y/R = y / sqrt (a^2 + y^2) dq= lamda*dy 3. The attempt at a solution I'm confused at the point of calculating the integral from -L/2 to L/2. I got the final integral solution from the "Special integrals table". Are my steps correct for the problem?...for some reason I keep getting zero for my answer and it just doesn't seem correct. Thank you!