A toaster has a Nichrome (a-4.5x10* °C) heating element that has a resistance of Ro- 80 n at a temperature T-20 °C. When the toaster is turned on, the resistance of the element rises to 89.1 2 and its temperature is increased. Find the final temperature (in °C) of the heating element.

A toaster has a Nichrome (a-4.5x10* °C) heating element that has a resistance of Ro- 80 n at a temperature T-20 °C. When the toaster is turned on, the resistance of the element rises to 89.1 2 and its temperature is increased. Find the final temperature (in °C) of the heating element.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 21P

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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.

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A toaster has a Nichrome (a-4.5x10 °c) heating element that has a resistance of Ro= 80 n at a temperature T-20 °C. When the toaster is turned on, the resistance of the element
rises to 89.1 2 and its temperature is increased. Find the final temperature (in °C) of the heating element.

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