A toaster using a Nichrome heating element operates on 120 V. When it is switched on at 20°C, the heating element carries an initial current of 1.33 A. A few seconds later, the current reaches the steady value of 1.21 A. The average value of the temperature coefficient of resistivity for Nichrome over the temperature range from 20°C to the final temperature of the element is 4.5 x 10-4 (°C)-¹. ► Part A What is the final temperature of the element? Express your answer in Celsius degrees. 15. ΑΣΦ T= Submit ? °C Request Answer Part B What is the power dissipated in the heating element initially? Express your answer with the appropriate units. μA 3 ? Po = Value Units Submit Request Answer Part C What is the power dissipated in the heating element when the current reaches a steady value? Express your answer with the appropriate units. ?

A toaster using a Nichrome heating element operates on 120 V. When it is switched on at 20°C, the heating element carries an initial current of 1.33 A. A few seconds later, the current reaches the steady value of 1.21 A. The average value of the temperature coefficient of resistivity for Nichrome over the temperature range from 20°C to the final temperature of the element is 4.5 x 10-4 (°C)-¹. ► Part A What is the final temperature of the element? Express your answer in Celsius degrees. 15. ΑΣΦ T= Submit ? °C Request Answer Part B What is the power dissipated in the heating element initially? Express your answer with the appropriate units. μA 3 ? Po = Value Units Submit Request Answer Part C What is the power dissipated in the heating element when the current reaches a steady value? Express your answer with the appropriate units. ?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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