December 1, 2015

Homework Help: physics

Posted by rick on Wednesday, January 30, 2008 at 9:16pm.

A toaster uses a Nichrome heating wire. When the toaster is turned on at 20C, the initial current is 1.50 A. A few seconds later, the toaster warms up and the current has a value of 1.22 A. The average temperature coefficient of resistivity for Nichrome wire is 4.5 10-4 (C)-1. What is the temperature of the heating wire?

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