1. The problem statement, all variables and given/known data I have been trying to grasp the concept of work and electric potential energy inbetween two parallel plates with a uniform electric field and it is quite confusing. can someone explain when is work done = negative electric potential and when is it positive electric potential. i have been trying to figure this out for 3 days now please tell me straight forward. 2. Relevant equations Think like the only thing given is change in voltage and the charge. 3. The attempt at a solution I have looked throught textbook, online, this forums, and asked my professor. and no one has really helped me understand this concept. i know what potential energy ke and work is. i understand gravitational pe but not electrical. please someone explain.