I'm not an expert in electricity, although I think this is still a basic question.
You have a battery, two wires, and a blob/object (conducts electricity fine, think potato maybe for this, but it conducts and is a sold).
You connect the battery to the object via the wires. Electricity flows.
Let's say that flow at "level 2" for whatever 2 is. It's the amps or volts or whatever flowing though.
Next step -- You take a second, identical set up, battery, object, two wires.
But then you remove one object. Two the two batteries and connect two wires into just one object, two wires out of one object back to the two batteries.
The object is solid but irregularly-shaped. So the path of electricity through the object is probably going to be shorter in one path than the other.
Question -- How does the electricity flow? If both set up were "level 2," they don't stay "level 2" if you connect them to one object, right? Do the outs from that one object become "level 4" and "level 0" ie all the electricity flows along the shorter path? It's not going to stay "level 2" for each flow path, is it? It's going to seek out the shorter path?
Generally, it would flow mostly toward the shorter path?
So 1+1 would equal .25+1.75 out depending on how it flows through that object?
Or 2+2 might equal 0+4 out, or 1+3 out, or maybe even 2+2 out still if the path length is exactly the same?
And it's not going to exceed 2+2=4 out total? You don't end up with something multiplying? 1+1=2 and not 1+1=4 (surprise!)?
Why are you trying to re-invent the wheel. Just get a basic electronics book, or a high school [physics text and start reading.