Do Colors Affect Heat Absorption and Electrical Resistance in Metals?

[barooonscape]

my set up was thus;

bunsen burner and around 4 metal plates of various colours.
certain colours absorbed more heat energy.
because temperature and resistance are linked i hypothesized
more temperature increase would mean less resistance.
when doing the practical the values i got were illogical.


why was this?
how could i redo and get apropriated answers?.

 

[mgb_phys]

The temperature of the plates depends on how efficently they absorb or reflect the radiation from the flame.
This has nothing to do with their resistance, although the resistance of a material does vary with temperature the absorption just depends on the color and roughness of the surface.