A toaster has a Nichrome (a-4.5 10 C) heating element that has a resistance of Ro 80 at a temperature T-20 °C. When the toaster is turned on, the resistance of the element rises to 91 2 and its temperature is increased. Find the final temperature (in °C) of the heating element.

A toaster has a Nichrome (a-4.5 10 C) heating element that has a resistance of Ro 80 at a temperature T-20 °C. When the toaster is turned on, the resistance of the element rises to 91 2 and its temperature is increased. Find the final temperature (in °C) of the heating element.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter28: Current And Resistance

Section: Chapter Questions

Problem 57PQ

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Concept explainers

Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.

Question

A toaster has a Nichrome (a-4.5 10C) heating element that has a resistance of Ro 80 2 at a temperature T-20 °C. When the toaster is turned on, the resistance of the element
rises to 91 2 and its temperature is increased. Find the final temperature (in °C) of the heating element.

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