1. The problem statement, all variables and given/known data (a) Find the equivalent resistance between points a and b in Figure P18.5 (R = 15.0 ). (refer to physics.gif for parts a. and b.) (b)Calculate the current in each resistor if a potential difference of 34.0 V is applied between points a and b. A (4.00 resistor) A (7.00 resistor) A (15.0 resistor) A (9.00 resistor) 2. Find the equivalent resistance of the circuit in Figure P18.6. (R1 = 16 , R2 = 13 ) (refer to physics2.gif for this problem) 2. Relevant equations V = IR 3. The attempt at a solution Honestly, I have NO idea where to start.