1. The problem statement, all variables and given/known data In the circuit of figure p28.23, determine the current in each resistor and the potential difference across the 200 ohms resistor. http://s848.photobucket.com/albums/ab41/tag16/?action=view¤t=circuit.jpg&newest=1 2. Relevant equations 1/Req= 1/R1+1/R2+1/R3+1/R4 I=deltaV/R deltaV= IR 3. The attempt at a solution Req=1/(1/200ohms +1/80ohms+ 1/20ohms+ 1/70ohms)= 12.22 ohms I=-240V/12.22ohms= -19.6 A deltaV= (-19.6A)(12.22)= -239 V Am I doing this completely wrong? If so what do I need to do?