FatalUser

Let me just start by saying that i have had no formal education in engineering or physics so excuse me if i have trouble expressing my thoughts, but recently i have been extremely confused on the theory behind voltage potential. So in this book I'am currently reading it states that voltage is the measure of energy of electricity as energy per unit charge. Now they are saying that specific unit of charge is measured in coulombs, now this is where i get confused, is voltage the amount of energy that is gained after one coulomb is forced from one fixed point to another? or is voltage potential just an invisible force like a magnetic field that is just static and when one coulomb passes through one voltage potential those unbounded electrons gain a specific amount of energy due to the intensity of the voltage field? I guess this would be my actual question, is voltage potential directly proportional to the amount of charged ions in a closed circuit?