Getting wrong results for resistivity calculations from V-I graph

[JoneS]

it all seemed pretty easy to start off with I've got all my results.
Voltage against current with a variable thing. but i can't do the equation, i have drawen up the graphs and followed the formulas but the results all come out wrong.

formulas: m=y/x m=volt/amp r=1/m which is the resistance
resistivity= r=p*a/l p=r*l/a

After competing these formulas the result comes out wrong HELP

 

[turin]

Originally posted by JoneS
... with a variable thing.

Huh?

Originally posted by JoneS
... i can't do the equation, ...

What do you mean by this?

Originally posted by JoneS
After competing these formulas the result comes out wrong ...

What result? What are you trying to find?

 

[karanrustagi]

i know... wut the hell? did u read the question after tuyping it?