Hi, I'm pretty new to circuits and just trying to get a rigid foundation in basic concepts. Right now, I'm stuck on simple direction conventions of currents. I ran a simulation of the following circuit using LTspice. I'm very confused as to why the current through R1 is opposite in direction to the current through R2. Also, which direction is positive current moving? Counterclockwise or clockwise? And how do you know? Any help is greatly appreciated.