Q1: Answer the following: a) A cable consists of 100 m of copper wire having a cross-sectional area of 0.5 mm2 and the resistivity of copper is 0.02uQ-m. Find the resistance of the cable? b) A certain winding made up of copper has a resistance of 100 at room temperature. If resistance temperature coefficient of copper at 0 C° is 0.00428/C, calculate the winding resistance if temperature is increased to 45 C°. Assume room temperature as 25 Cº.

Q1: Answer the following: a) A cable consists of 100 m of copper wire having a cross-sectional area of 0.5 mm2 and the resistivity of copper is 0.02uQ-m. Find the resistance of the cable? b) A certain winding made up of copper has a resistance of 100 at room temperature. If resistance temperature coefficient of copper at 0 C° is 0.00428/C, calculate the winding resistance if temperature is increased to 45 C°. Assume room temperature as 25 Cº.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.74P: A manufacturer in the United States wants to sell a refrigeration system to a customer in Germany....

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