[Boogieman]

Tungsten is a very poor conductor though, hence its utility in light bulb filaments.

[babygene]

"Tungsten is a very poor conductor though, hence its utility in light bulb filaments." Actually it is one of the better conductors. Material Resistivity Conductivity Silver 1.59×10−8 6.30×107 Copper 1.68×10−8 5.96×107 Annealed copper 1.72×10−8 5.80×107 Gold 2.44×10−8 4.10×107 Aluminum 2.82×10−8 3.5×107 Calcium 3.36×10−8 2.98×107 Tungsten 5.60×10−8 1.79×107 http://chemistry.about.com/od/moleculescompounds/a/Table-Of-Electrical-Resistivity-And-Conductivity.htm The reason it is used in filaments is not it's resistance but it's high melting point.