I'm learning about the thermoelectric effect(s) from google searches and youtube videos at the moment, but I have a question that I haven't seen asked - from what I gather, the seebeck effect works by having a current develop in 2 pieces of dissimilar materials where the stronger one cancels out or overcomes the weaker one, leaving an overall smaller current. What happens when you connect both the materials in a cross instead of a loop? Do the currents add up or does something go wrong? I assume 10'000 people have already thought about this and figured it out, but I'm still learning.