>>14200158When water attempts to dissolve a metal, and steals some positive ions, leftover electrons make the metal negatively charged. Different metals are dissolved at different rate. If we use the same metal but slightly different amount of water, there should be a difference in voltage, but it should be kinda minor?
Metals, for whatever reason, are good at transferring voltage. Probably because electrons in them can move together with photons, affecting photons these moving electrons themselves emit.
The question is, why are you asking about blackbody radiation? Heat tends to make the movement of particles more random, meaning that the EM fields created by their photons would be different for every moment, and are likely to cancel each other.
Heat does create a difference in voltage between pieces of metal. Probably because of their interaction with air? Or because heated atoms try to escape?
Black body radiation from a magnet can induce a current, since its particles move in the same direction and fields produced by their photons reinforce each other?
