(Two long molecules) Two long molecules have unbalanced charges at the ends. The molecules are oriented so that the corresponding charges are opposite across each axis, as shown in the figure, with both centered along the x-axis and equidistant from the y-axis.

A. Which of the following statements is true for the electric potential () along the y-axis?

a. is positive for every point on the y-axis.

b. is negative for every point on the y-axis.

c. is zero for every point on the y-axis.

d. The sign will depend on where you are along the y-axis.

B. Which of the following statements is true for the electric potential () along the x-axis?

a. is positive for every point on the x-axis.

b. is negative for every point on the x-axis

c. is zero all along the x-axis.

d. The sign will depend on where you are along the x-axis.

C. What is the electric potential energy () of a positive ion with charge of 1 nC placed at point P where the electric potential is known to be 1.2 V? Express your answer in J.

D. What is the electric potential energy () of a negative ion with charge of −1 nC placed at point P where the electric potential is known to be 1.2 V? Again, express you answer in J.