1. The problem statement, all variables and given/known data Identical resistors, R, make up the legs and rungs of a resistive ladder of infinite height. Find Req (equivalent resistance) of ladder, measured between points A and B. 2. Relevant equations 3. The attempt at a solution Here's my thought process: First make all the parallel resistors (the rungs) into one equivalent resistor. Since it's infinitely tall, this would be R^infinity/(infinity*R) Second, find the total Req by adding the equivalent resistance for the rungs to the sum of the resistors on the legs. This would make Req=R^infinity/(infinity*R)+(infinity*R) This makes Req equal to infinity. But the answer is Req=(1+sqrt(3))*R Is my process for setting this up wrong?