Step 4: Why does this happen
the type of matrerial
the tempreture of the material
this size of the material
and since we are keeping to vairabels constent and controlling the third we can controll the materials resistance.
i chose carbon graphite because carbon is not a metal, which is very condutive. it is a but it is one of the very few non-metals that is partialy conductive and this is what we are using in our favour