# Why does Thevenin’s Theorem work? I understand how to use it but I don’t understand why it w

Why does Thevenin's Theorem work? I understand how to use it but I don't understand why it works. I have been reading my textbook and can follow the procedure, but I want to understand on a deeper level why the author does what they do. So far I know that the steps are 1. Find Vth, the open terminal voltage 2. Find isc, the short circuit current Vth 3. Rth isc But I don't know why these steps work. I want to understand the concepts better instead of remembering the steps