Everybody on the internet talks about inductors when they are in steady state. But nobody talks about inductor, when its in initial phase. Here is what I am talking about: We made a clear statement why voltage leads the current in inductor. And I understood that part quite well. But consider this: You have a solo inductor(ideal) connected to a sinusoidal wave voltage generator. What happens with the voltage and current in that important first half of the sine wave [0,pi]. How does then current behave? After what time will it go into steady state, and have a pi/2 voltage over current lead? This question mainly popped up because, at capacitor, current leads the voltage by pi/2. A simple minded one would thought that at 0 time, there is already current when voltage is 0.