Just a quick question about ohmic conductors. I asked a question recently about why a light filament isn't ohmic. Apparently as you increase the voltage in a filament the temperature increases which causes the resistance to increase.
How can anything be an ohmic conductor? Is there anything where the temperature/resistance doesnt increase as you increase the voltage? More importantly, how can metal wire be an ohmic conductor? Doesn't the temp increase with V? What's a light filament made out of then as i thought it was just a metal wire. Obviously not :)