- #1

- 22

- 0

## Homework Statement

A toaster with a Nichrome heating element has a resistance of 70 ohms at 20

^{o}C and an initial current of 1.6 A. When the heating element reaches its final temperature, the current is 1.39 A. What is the final temperature of the heating element?

## Homework Equations

V=IR

[tex]\alpha[/tex]=([tex]\rho[/tex]-[tex]\rho[/tex]

_{o})/[tex]\rho[/tex]/(T

_{f}-T

_{o})

## The Attempt at a Solution

I know that the voltage will remain constant therefore:

I

_{o}*R

_{o}=I

_{f}*R

_{f}

I also know that Nichrome's [tex]\alpha[/tex]=100e-8

but I don't really know where to go from here