1. If you need to do 1.6x10^-6 J of work in order to get acharge closer to another charge, what is the increase in potentialenergy in J of the moved charge?
2. The work done by the electric force as a positivetest charge of 3.0x10^-6 C moves from A to B is 6.0x10^-5 J. Whatis the difference in electric potential energy (EPE) between pointsB and A, in Joules? What is the potential difference (V) betweenpoints B and A?
3. A negative charge q1 = -6.0x10^-8 C has a distanceof 100 m to a positive charge q2 = 6.0x10^-8 C. Twopoints, A and B, are on the line connecting the two charges. If Ais 30 m away from q1 and B is 30 m away from q2, what is thepotential difference in V between the points A and B?
4. What is the intersection angle between an electric field lineand an equipotential line/surface?
