Question: A toaster using a Nichrome heating element operates on 120 V. When it is switched on at 20oC, the heating element carries an initial current

A toaster using a Nichrome heating element operates on 120 V. When it is switched on at 20oC, the heating element carries an initial current of 1.35 A. A few seconds later the current reaches the steady value of 1.23 A.
(a) What is the final temperature of the element? The average value of the temperature coefficient of resistivity for Nichrome over the temperature range is 4.5 X l0-4 (Co) -1.
(b) What is the power dissipated in the heating element initially and when the current reaches a steady value?

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