The elecm'c potential a'i'erence AV12 between two locations 1 and 2 can be written as: AV12 = V2 7 V1 = Awa/q In this expression, q is the probe charge that was moved from point 1 to point 2, and AU,\" is the change in electric potential energy that occurred when this was done. If AU is measured in Joules and q is measured in Coulombs, then AV comes out in Joules per Coulomb Another name for 1 J/C is \"one vol A" 3. In the situation described above, is the electric potential difference D V W between locations W and 2 positive, negative, or zero? Use the relationship above to justify your answer. According to your result, which is higher, the potential at W or the potential at 2? E 4' Suppose that a point charge q 0 were moved from W to Z A How would the change in potential energy of this point charge as it is moved from W to Z compare to the original situation (in which the point charge was +q \")7 Explain How would the electric potential difference VZ 7V"; compare to what it was in the original situation? Explain