1. The problem statement, all variables and given/known data We are suppose to make a lab report about and experemint that we did in physics lab. It consisted of drawing equipotential lines in a overbeck electric field mapping apparatus. Different desing plates were used, each having conductors, some were circular and other where just straight figures. I am not worried too much about the design of the equipotential lines or how they are arranged, I am more concerned about the resistors that were on the apparatus. We seted up the power source to 4 volts, and we had to find points of 0 voltage on the map by the use of a galvanometer, it is called a potential difference. so my question is this, how does resistors affect equipotential lines? 2. Relevant equations 3. The attempt at a solution https://www.google.com/search?q=overbeck+field+mapping+apparatus&rlz=1C1VFKB_enUS623US623&source=lnms&tbm=isch&sa=X&ved=0ahUKEwi44orP-ofPAhVLMyYKHck7CxgQ_AUICCgB&biw=1366&bih=640#imgrc=8XMPWlgsynBtdM: that is a diagram of the apparatus that we used. In lectures we have not talked even about equipotential lines and resistor so that is why i am very confused. I read the book and I understand the concepts of both but I am not sure what is going on on the apparatus. We first connected the galvanometer to resistor E1 of the apparatus to find a 0 reading, my assumption is that since it is only a resistor, the voltage will not be decreased as much, so the equipotential line will be close to the charge particle. As we move to E2, the voltage should have decreased since there are now 2 resistors, and so on. As the equipotential lines get farther and farther away from the charged particle, the potential (voltage) decreases. Is this right?