That means 1 volt = 1 joule per coulomb. If you have to push on the 1C charge to make it move, that means YOU are doing the work (work = force x distance). If you release the 1C charge and it forces its way back to the starting point (like it flows through a circuit), then the CHARGE is doing work.
What can 1 volt do?
A "volt" is a unit of electric potential, also known as electromotive force, and represents "the potential difference between two points of a conducting wire carrying a constant current of 1 ampere, when the power dissipated between these points is equal to 1 watt." Stated another way, a potential of one volt appears ...
How much power is in a Volt?
What Are Volts? A volt, according to BIPM, represents the "potential difference between two points of a conducting wire carrying a constant current of 1 ampere when the power dissipated between these points is equal to 1 watt." The symbol for volt is "V."