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