1. The problem statement, all variables and given/known data The electric field strength 8.05 cm from a very long charged wire is 1310 N/C. What is the electric field strength (in N/C) 30.0 cm from the wire? 2. Relevant equations E=F/Q E=KQ/R^2 3. The attempt at a solution First I try to find the charge using E=KQ/R^2 1320=K(Q)/(8.05)^2 Q= 9.432 x 10^-6 second I used the charge to find the electric field. E= k(9.432 x 10^-6)/30^2 E= 94.32 N/C I didn't convert cm to m because it would cancel out at the end. so I don't know why my answer is still wrong.Any help will be great. thanks guys.