A toaster uses a nichrome heating wire when the toaster is, Physics

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A toaster uses a nichrome heating wire when the toaster is

A toaster uses a nichrome heating wire. When the toaster is turned on at 20 degrees Celsius, the initial current is 1.5 amps. a few seconds later the toaster warms up and the current now has a value of 1.3amps. The average temperature coefficient of resisitivity for nichrome wire is 4.5X10^-4 (C)^-1. What is the temperature of the heating wire?

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