1. The problem statement, all variables and given/known data A thin rod lies on the x-axis with one end at -A and the other end at A, as shown in the diagram. A charge of -Q is spread uniformly over the surface of the rod. We want to set up an integral to find the electric field at location ‹ 0, y, 0 › due to the rod. Use the following as necessary: x, y, dx, A, Q. Remember that the rod has charge -Q. (a) In terms of the symbolic quantities given above and on the diagram, what is the charge per unit length of the rod? λ = ? (b) What is the amount of charge dQ on the small piece of length dx? dQ = ? 2. Relevant equations Electric field of a uniformly charged Rod: 1/4πε0 * 2(Q/L) / r 3. The attempt at a solution PartA: -ΔQ: I tried this because since i'm dividing the rods by a based amount, the charge Q, should be written by -ΔQ. -ΔQ/L: I input this wrong, because it's suppose to be A, since that's the lenght of the rod. I was thinking of -ΔQ/A, because since i'm dividing the charge by a certain amount, I'm also dividing the length of the rod as well. Haven't tried it yet. PartB: -dx/A: Well I think similarly like part a, we're dividing the rod again, should be divided by A. Was thinking of Q (dx/A) if i'm trying to find the dQ Just need help on these parts. From there I'll attempt the rest of the parts on my own.