Is Resistance Inversely Related to Gradient in a Filament Bulb?

[mani18]

need an urgent help on filament bulb topic

hi everyone
i am getting stuck in this assignment on question related to filament bulb.

the question goes like: is resistance and gradient inverse to one another in filament bulb and when looking at the graph (which is a curve graph)..
we need to explain on how
i could do it for nichrome wire since it had a straight line.
if you could jus tell me on how to show it and brief explanation i would be very grateful.

cheers
mani

 

[Quinzio]

gradient of what ?

 

[mani18]

sorry for being clear. hope this one will be clearr enough.
graph is used to calculate the gradient so the question asks can you find the resistance using 1/m (1/gradient) n r they inverse to one another

 

[Quinzio]

I would say yes. Can you post the graph ?

 

[mani18]

okay thank you. here you go.

 

[Quinzio]

Yes sure, you can always calculate R given V and I.
The only doubts is if you want the resistance for small changes or not.