1. The problem statement, all variables and given/known data I would like to know how to calculate the total capacity of the capacity network displayed in the uploaded picture. I know how to calculate the total capacity if the capacity are in parallel or in series, but I am confused by the capacity Nr 6. I know how to calculate the total capacity for the case if they are all the same, please give me an advice how to solve for the case of different capacities. 2. Relevant equations C = Q/U 3. The attempt at a solution The part between 2-3-6 and 4-6-5 are not connected to the source, so their total charge must be zero.