# Resistance grows with temperature

## Homework Statement

The copper windings in an electric motor have a resistance of 54[Ω] at 200.
Later the resistance was 60[Ω], what is the temperature

## Homework Equations

$$R_1=R_0(1+\alpha t_1)$$
α=0.00393[1/0]

## The Attempt at a Solution

At 00C R0 is: $54=R_0(1+0.00393\cdot 20)\rightarrow R_0=50.06$
$60=50.06(1+0.00393\cdot t_2)\rightarrow t_2=50.5^0$
It should be t2=2860C

## Answers and Replies

Related Introductory Physics Homework Help News on Phys.org
Bystander
Homework Helper
Gold Member
And your question is what?

If i am right and the book is wrong.

Bystander