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

Options

A. 2 J
B. 3 J
C. 5 J
D. 6 J

Answer

D

Explanation

The term 'each coulomb' means 'every 1 coulomb', so the charge here is 1 coulomb. The potential difference is 6 volts. We have to find out the energy. This energy will be equal to the work done.
Now,
Potential difference `= ("Work done")/("Charge moved")`
or `V = (W)/(Q)`
`6 = (W)/(1)`
So, Work done, `W = 6 xx 1` joules
`= 6J`
Since the work done on each coulomb of charge is 6 joules, therefore, the energy given to each coulomb of charge is also 6 joules.