Light bulbs labeled 40W, 60W, and 100W are connected to a 120V/60Hz power line as shown in the figure. What is the rate at which energy is dissipated in each bulb? http://img156.imageshack.us/img156/9584/p41qz1.png [Broken] Well ac circuits has been confusing me. I first though if a light bulb was rated for 40W it would dissipated 40J/s but this isn't the case here. I tried to solve for the current going to each but i got stuck.