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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![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.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffc06db49-044a-4677-8264-51860de38bfd%2Fd59b95bb-debc-458d-8d88-a169bc455c1d%2Fvf78os_processed.jpeg&w=3840&q=75)
Transcribed Image Text: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.
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