A: 1. The problem statement, all variables and given/known data "http://i12.photobucket.com/albums/a234/Xuxyz/battery.jpg" [Broken] (a) i. Using the information in the graph, determine the potential difference Vo across the resistor immediately after the switch is closed. 2. Relevant equations Vo = Io * R 3. The attempt at a solution I don't know how to find Io using the grap, because as you can see from my link, it doesn't intersect at a specific point. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ B: 1. The problem statement, all variables and given/known data "http://i12.photobucket.com/albums/a234/Xuxyz/04-08-2007015444PM.jpg" [Broken] I only need help on part f 2. Relevant equations I don't know. 3. The attempt at a solution None, sorry. I don't have a clue. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ C: 1. The problem statement, all variables and given/known data "http://i12.photobucket.com/albums/a234/Xuxyz/04-08-2007020007PM.jpg" [Broken] Only part D 2. Relevant equations EMF = vBD I = vBD / R ~~~~~ I know this is a lot, but I would appreciate any and all help.