A Nichrome Wire Is Used as a Heating Element in a Toaster

Multiple Choice

A Nichrome wire is used as a heating element in a toaster. From the moment the toaster is first turned on to the moment the wire reaches it maximum temperature, the current in the wire drops by 20.0% from its initial value. What is the temperature change in the wire? The temperature coefficient of resistivity for Nichrome is 0.000400 (°C) ^-1.

A) 200°C
B) 400°C
C) 500°C
D) 625°C
E) 300°C