1. The problem statement, all variables and given/known data To what potential should you charge a 1.0 micro(u)F capacitor to store 1.0 J of energy? 2. Relevant equations Uc = 1/2C (Vc)squared 3. The attempt at a solution 1/2 CV^2 so V=SQR(2E/C)=SQR(2/1E^-6)=.004 V This isn't right though. Any help??