1. The problem statement, all variables and given/known data http://i62.tinypic.com/2n00efo.jpg 2. Relevant equations 3. The attempt at a solution I drew the circuit here: http://i57.tinypic.com/10rmp20.jpg I'm not sure where to start with this problem. Edit: Sorry for using this site for help so much, I just have midterms coming up soon and need to get practise problems solved and I don't have money for a tutor.