1. The problem statement, all variables and given/known data A straight nonconducting plastic wire 8.50 cm long carries a charge density of +175nC/m distributed uniformly along its length. It is lying on a horizontal table top (a) Find the magnitude and direction of the electric field this wire produces at a point 7.00cm directly above its midpoint. Q = +175nC/m (charge density) L = .085m (length of charge) D = .060m (Distance from charge) r^2 = x^2 + H^2 2. Relevant equations dQ = (Q / L) dx (Total charge over Total distance) dEy = kdQ/r^2 sin θ sin θ = D/r dEx = 0 k = electric constant 3. The attempt at a solution Ey = kQD/L(x^2 + H^2) ∫ 1 / (x^2 + D^2) ^(3/2) Integrand from 0 to L = KQD/(D^2(D^2 + X^2)^(1/2)) Answer I got was 2.5 x 10^5 N/C This is wrong because the charge is a density C/m. I tried to multiply that answer with the total distance to cancel the m but answer still came out wrong. What did I do wrong here?