Like imagine there are two metal bars, connected end to end, one made of copper one of stainless steel, with a voltage of 12volts and a potential amperage of say 12000 amps. Which would melt first (I assume one will)
melting point 1530°C ; ρ 97*10^-3 ohm*mm^2/m melting point 1080°C ; ρ 17*10^-3 ohm*mm^2/m considering the same cross section area, then the stainless steel will melt well ahead
