Alright so a professor took me up for a research project which makes use of a Kelvin Probe. However I only have a year of introductory Physics under my belt (Mechanics and Waves & Oscillations). I started studying some of E&M which I assumed I needed to know, this summer but didn't get too far, only the first 3 chapters (Forces & Fields, Gauss' Law, and Electric Potential). I wanna know what are the topic I should be focusing on in order to understand what I'm doing with the probe. I realize that ideally I should have a good mastery of E&M but I'm gonna start using the probe on Monday so I don't really have time to do that. The experiment has to do with finding surfaces with inhomogeneous work functions or something of the like. Thanks for answering.