Answered: A circular copper wire has a…

A circular copper wire has a cross-sectional area of 2mm2; its resistance is 0.16 Ω at 50°C.Find its resistance at 20°C using: a.Inferred zero resistance formula b.Temperature coefficient formula

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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Question

A circular copper wire has a cross-sectional area of 2mm2; its resistance is 0.16 Ω at 50°C.Find its resistance at 20°C using:

a.Inferred zero resistance formula

b.Temperature coefficient formula

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