What do k and n represent in the filament lamp equation I=kV^n?

[paul115]

Homework Statement

what does k and n relate to? i can work them out but don't know exactly what they are.

Homework Equations

I=kV^n

The Attempt at a Solution

i think the k and n have something to do with temperature and the tungsten metal in the lamp (coefficient of resistance?)? if anyone can help that would be much appreciated.

 

[quantumdude]

The n is just a dimensionless number, and the k is a coefficient with units of $A/V^n$.