Question: A toaster uses a heating wire. When the toaster is turned on at 16 °C, the initial current is 2.13 A. A few seconds later, the toaster warms up and the current has a value of 1.55 A. The average temperature coefficient of resistivity for this wire is 4.0 x 10-4 (C°)-1.
Part A: What is the temperature of the heating wire?
Thanks in advance that solve the above question.