In most derivations of the Maximum power transfer theorem the derivation is done using the relation of power :
P = i²R And on further derivation it comes out to be Pmax = Vth²/4Rth
If I derive the power from the relation p= vth²/Rth
It's clearly wrong My logic is as follows : The voltage across the load resistance is Thevenin voltage Vth , and it's resistance is RL but for Maximum power to be transferred, RL must be equal to Rth therefore the formula. Can anyone explain what am I missing here? (Actually I derived it intuitively in the exam, it turned out to be a blunder).