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A toaster has a heating element which has a temperature coefficient of resistivity of 2.0 x 10-3 (°C)-1.The toaster is plugged into an outlet which delivers a constant voltage. If the resistance of the wire did not change with temperature, the toaster would be able to toast a piece of bread (at 22 °C) in 20 s. If the toaster reaches a temperature of 250 °C, how long does it actually take to toast the same piece of bread?

A toaster has a heating element which has a temperature coefficient of resistivity of 2.0 x 10-3 (°C)-1.The toaster is plugged into an outlet which delivers a constant voltage. If the resistance of the wire did not change with temperature, the toaster would be able to toast a piece of bread (at 22 °C) in 20 s. If the toaster reaches a temperature of 250 °C, how long does it actually take to toast the same piece of bread?

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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A toaster has a heating element which has a temperature coefficient of resistivity of 2.0 x 10-3 (°C)-1.The toaster is plugged into an outlet which delivers a constant voltage. If the resistance of the wire did not change with temperature, the toaster would be able to toast a piece of bread (at 22 °C) in 20 s. If the toaster reaches a temperature of 250 °C, how long does it actually take to toast the same piece of bread?

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