How much energy is given to each coulomb of charge passing through a 6 V battery

Question 3:

How much energy is given to each coulomb of charge passing through a 6 V battery?

Solution:

The energy given to each coulomb of charge is equal to the amount of work which is done in moving it.

Now we know that

Potential difference =  

∴ Work done = Potential difference × charge

Where, Charge = 1 C and Potential difference = 6 V

∴ Work done = 6×1

                   = 6 Joule.