How many Coulombs does it take to make 1 Joule of energy?

Answer 1

a Coulomb is a unit of charge
a Joule is a unit of energy

It takes one Joule of energy to separate one coulomb of charge to a potential of one volt.

Answer 2

This question does not make sense as asked--coulombs are units of charge and Joules are units of energy, these are different things. You need to specify a voltage difference when you talk about coulombs and joules.

Answer 3

Depends on how much energy (in joules) are in the coulomb(s) of electrons.

One volt is a joule per coulomb. So if the coulomb is at one volt, then thats one joule of energy.