1. The problem statement, all variables and given/known data 2. Relevant equations Leq = L1 + L2 + ... + Ln (series) Leq = 1/((1/L1) + (1/L2) + ... + (1/Ln)) (parallel) 3. The attempt at a solution For part A, I redrew the circuit (above), taking into account that the switch was open, but I'm not entirely certain I did it right. If that is correct, then it would appear that for part B, a redrawn circuit would be the same except for one more parallel branch with nothing on it (representing the closed switch), which would cause a short circuit. This doesn't seem right. Did I redraw the circuit incorrectly?