the resistance of a given electric device is 46 ohms at 25 °C . if the temperature coefficient of resistance of the material is 0.00454/°C at 20°C. determine the temperature of the device when its resistance is 92 ohms

the resistance of a given electric device is 46 ohms at 25 °C . if the temperature coefficient of resistance of the material is 0.00454/°C at 20°C. determine the temperature of the device when its resistance is 92 ohms

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter12: Electronic Control Devices

Section: Chapter Questions

Problem 14RQ

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Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.

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