Resistance against temperature graph

[hms.tech]

Hi, i have a problem about the relationship of temprature and resistance.

What will be the graph of resistance of a filament (in a lamp) against temprature. In particular, what happens to the resistance of the filament (in a lamp) if i increase its temprature ?

 

[berkeman]

Hi, i have a problem about the relationship of temprature and resistance.

What will be the graph of resistance of a filament (in a lamp) against temprature. In particular, what happens to the resistance of the filament (in a lamp) if i increase its temprature ?

There is an equation that relates resistance and temperature -- try looking up "resistivity" on wikipedia, or you can google resistance versus temperature.

Can you show us the equation?