1. The problem statement, all variables and given/known data Check picture 2. Relevant equations V=IR 3. The attempt at a solution I thought I had this right, but then I started thinking about it and I'm not sure anymore. My thought was since the voltage was changing and the current was constant, that the source was a voltage source. I kinda thought of it as you changing the voltage on a power supply or something keeping the current constant. Is that right? I feel like it's not.