1. The problem statement, all variables and given/known data I need to find the current equation for the junction in node a in the following circuit: http://i749.photobucket.com/albums/xx137/abcdmichelle/gjgjhg.jpg 2. Relevant equations Current in = Current out so I(in)=I(out) 3. The attempt at a solution The arrows in the diagram represent the direction of the current. At node a I thought the junction rule would be I(3)=I(2)+I(1) Is this wrong? I think it is but I don't understand why!? Please help!