john, the load would not be a constat 8ohms. you are using dc equations to explain an AC circuit... your freely interchanging resistance and impedance. resistance is a term used to explain DC circuits, impedance is used for AC circuits. the impedance will change, as it is a function of frequency within a curcuit. this is the whole reason mafacturers publish impedance graphs, to show the impedance across a range of frequencies.. the "nominal" or reported impedance is what the resistance is at a constant voltage. as the frequency changes, the voltage changes, both in volts and in vectors.. it becomes a 3 dimentional eqn, where the equns your using are 2d eqns that are used for DC circuit analysis....
i'm on my phone, so i am not going to google ac voltage eqns... Also, please forgive any typos, as i'm on my phone...
