LA given material has a resistance of 20 Q at room temperature (20°C) and 25 2 at a temperature of 85°C. a) Does the material have a positive or a negative temperature coefficient? Explain briefly. b) Determine the value of the temperature coefficient, a, at 20°C. c) Assuming the resistance versus temperature function to be linear, determine the expected resistance of the material at 0°C (the freezing point of water) and at 100°C (the boiling point of water).

Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter4: Transmission Line Parameters
Section: Chapter Questions
Problem 4.2P: The temperature dependence of resistance is also quantified by the relation R2=R1[ 1+(T2T1) ] where...
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LA given material has a resistance of 20 Q at room temperature (20°C) and 25 2 at a temperature of 85°C.
a) Does the material have a positive or a negative temperature coefficient? Explain briefly.
b) Determine the value of the temperature coefficient, a, at 20°C.
c) Assuming the resistance versus temperature function to be linear, determine the expected resistance of
the material at 0°C (the freezing point of water) and at 100°C (the boiling point of water).
Transcribed Image Text:Open with Google Docs LA given material has a resistance of 20 Q at room temperature (20°C) and 25 2 at a temperature of 85°C. a) Does the material have a positive or a negative temperature coefficient? Explain briefly. b) Determine the value of the temperature coefficient, a, at 20°C. c) Assuming the resistance versus temperature function to be linear, determine the expected resistance of the material at 0°C (the freezing point of water) and at 100°C (the boiling point of water).
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