Calculate the resistance Rab between A and B for an half-infinite ladder (i.e. a ladder that has a beginning but no end).
I'm trying to solve this problem. The solutions I've found seem to be based on the notion that if you add one more resistor in parallell, then that single resistor will have the same resistance as the whole resistance Rab. But why is that? Why does another resistor automatically have the same resistance as the whole chain?
I'm trying to solve this problem. The solutions I've found seem to be based on the notion that if you add one more resistor in parallell, then that single resistor will have the same resistance as the whole resistance Rab. But why is that? Why does another resistor automatically have the same resistance as the whole chain?