1. The problem statement, all variables and given/known data[/b] Problem - Compute the potential difference between the points (4,6,3) and (8,1,6) due to a constant electrostatic field given by E = (2 ihat + 7 jhat + 12 khat) N/C. distance in meters 2. Relevant equations Fq = qE Vr = Keq1/(r-r1) Fq = (Kq1 (r-r1))/(r-r1)3 3. The attempt at a solution I can't figure out how to solve. Currently I combined the two points to find the vector magnitude and then found the maginute of E. then plugged into the Fq = qE problem to solve for q. Then plugged into the Vr equation. I don't believe this is correct though and should be using the third equation as well.