1. The problem statement, all variables and given/known data An electric fan which is plugged into a 115 V(rms), 60 Hz socket in your house can be considered as made up of a 1500 Ω resistor in series with a 1.4 H inductance. How much power is dissipated by this electric fan on the average? (in W) 2. Relevant equations P = IV = I^2 R I = V/Z(impedance) or I = V/R 3. The attempt at a solution Find Z, then I, then P. My question is, however, why couldn't I use I = V/R?? The other formula to find current? Why wasn't it valid here? Because V/R is for capacitors... or? Can someone explain.