1. The problem statement, all variables and given/known data Calculate the resistance of the network shown below: (a) between A and B, (b) between A and C. Answers: (a) 3 Ω, (b) 4 Ω 2. The attempt at a solution (a) I would say that the resistance is 4 Ω between A and B. (b) For A and C the resistance is: (1/4 + 1/4)-1 = 2 Ω. In both cases the answers are wrong. What am I missing?