Question

how much energy is given to each coulomb of charge passing through a 12 volt battery

Answer 1

here,
p.d = 12x
q = 1c
we know that,
v = w/q
12 = w/1
w = 12 joules

Answer 2

Given

Q= 1 C

V = 12 V

V = W/Q

W = Q × V

work done = 1 C × 12 V

= 12 J

Energy = Work done

Energy = 12 J