five joules of work are needed to shift .5 c of charge from one place to another. the potential differences between the places is

Answer 1

well, since volts = J/C,

5J/.5C = 10V

Answer 2

your ans is wrong because u have to divide them means J/C
but you multiplied them
a
the answer will be 1
J=5
C=5
V=5/5 =1V