so i was studying resistance and there is this something that i cant really understand imagine a circuit with Potential difference V and resistance R it has like say 3 resistors , now How is the current intensity constant ? if the resistors decrease the potential energy , after the 3rd resistor shouldn't electrons actually stop moving because there is no potential energy anymore ?? since all the potential energy has been used up by resistors ? the only way to think of this is if the whole circuit design is not physically accurate , and that those resistors drawn are just symbols for the resistance across the whole wire not just those places , this would make sense . is this true ?