1. The problem statement, all variables and given/known data An electric field with a magnitude of 2.5N directed to the left, acts on a negative charge of -5.0C. Determine the electric field in which the charge is located. Give. FE=2.5N q=-5.0C 2. Relevant equations FE=qε 3. The attempt at a solution ε=2.5N/5.0C=0.5N/C. I don't know how to find the direction. The answer is 0.5N/C, but I don't know how to get that direction. I guess we have to assume the positive test charge is to the right of q and figure out the direction it would move as a result of FE applied on it by q. That doesn't really make sense though. Edit: I don't know why the formatting is weird. Also, please help- my exam is tomorrow!!