In my physics class we have learnt that all voltage is lost at the last component. If there is one resistor then all the voltage will be lost at that component if there are more than one then all voltage will be lost at the last component. When I asked how do the electrons "know" that all charge must be lost there, I was told to not worry about it because I don't need to know it for the course.
So why if there was circuit (C1) with a 5v battery connected to a 100 Ohms resistor (R1) would all the voltage be lost at that resistor, and if there was another circuit (C2) with a 5v battery connected to a 100 Ohms resistor (R1) then to a 50 Ohms resistor (R1) why would all the voltage at the 50 Ohms one? Why wouldn't it all be lost at R1 in the second circuit? How do the electrons know?
So why if there was circuit (C1) with a 5v battery connected to a 100 Ohms resistor (R1) would all the voltage be lost at that resistor, and if there was another circuit (C2) with a 5v battery connected to a 100 Ohms resistor (R1) then to a 50 Ohms resistor (R1) why would all the voltage at the 50 Ohms one? Why wouldn't it all be lost at R1 in the second circuit? How do the electrons know?