Find the temperature coefficient of metal X

[icystrike]

Homework Statement

Metal X

1) since the graph does not show that V is linearly related with I , is it right for me to apply the formula
R(50*C)=R(20*C) (1+ a lΔTl )
to find the temperature coefficient of metal X ?

2) R/Ω is linearly related with T/*C ?
If yes, will R=(dR/dT)T+c ?
Whereby dR/dT and c are constants that a fixed for the similar metal

Homework Equations

The Attempt at a Solution

 

[icystrike]

please can someone answer to my question..

 

[LowlyPion]

1) looks to behave that way.
http://hyperphysics.phy-astr.gsu.edu/hbase/electric/restmp.html

For an introductory course I'd say this is what they would want you to use.

Is this graph part of a measured lab assignment?

 

[icystrike]

1) looks to behave that way.
http://hyperphysics.phy-astr.gsu.edu/hbase/electric/restmp.html

For an introductory course I'd say this is what they would want you to use.

Is this graph part of a measured lab assignment?

the graph is not part of the measure lab assignment.
I ask this question simply because of curiosity.
Thank you for answering my question , your help is greatly appreciated.