I completed Q13-Q18 but not sure if it was done correctly. Q19 I don't understand.

I completed Q13 through Q18. I need help with Q19 because I'm not understanding it. I'm not sure if I did Q13-Q18 correctly. I used the graph that is attached also. Q13. "Measure" VB and VA, including the sign: VB -9.23 V VA =2.26 V 179.5 deg 179.8 deg Q14. Which way does the electric field E point, from A to B or B to A? A TO B 9.23 V/m 2.26 V/m Q15. Does E point in the direction of increasing or decreasing potential? decreasing potential Q16. Where would, B A a proton have more electric potential energy, at point A or B? Point A an electron have more electric potential energy, at point A or B? Point B Q17. Now suppose we place a small positive charge, +q, at point "A". What is the sign of the work done by the electric field if the charge is moved from A to B? -negative Is WA.. positive, negative, or zero? (Highlight one) Q18. Is VB - VA positive, negative, or zero? (Highlight one) Use the results from your computer simulation/ + Q19. Check the consistency of your sign in Q17 with WA - - -q(VB - VA): +1 nc -1 nc Sensors 1 meter The sign of WAL is (Q17) The sign of q is (Q17); the sign of VB - VA is (Q18). Is the sign of WAL, the same as the sign of -q(VB- VA)? y. Jane