1. The problem statement, all variables and given/known data Connect three bulbs as shown in the figure. Predict how the brightness of both bulbs A and B will change if you unscrew bulb C. Explain your reasoning. Image here: http://picasaweb.google.com/lh/photo/j6oEAx3ohzPTB3QI_h7lBA?feat=directlink 2. Relevant equations N/A 3. The attempt at a solution I Think A and B will both get brighter because there is less resistance in the circuit overall. However, I am not sure if that's true because of the fact that A is in parallel with B and C and B is in series with C. I know that the equivalent resistance for a bunch of resistors in series is additive (Requiv = R1 + R2 + R3, etc... and that the resistance in a parallel circuit is an inverse relationship.