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## Homework Statement

Initially, copper wire is 20

^{o}C then raises the temperature of the wire casing the resistivity up 12%, find the temperature at the final.

## Homework Equations

R=R

_{ref}[1+α(T-T

_{ref})]

## The Attempt at a Solution

I am completely confused with this mathematics problem,Stucking with the final resistivity ( R ) in the equation