An aluminum cable has a resistance of 41 Q2 at 31 °C. Calculate the resistance of the cable when the sun heats it up Inferred zero Temperature Coefficient @ Resistivity @ 20°C Material resistance 20°C temperature -236 °C Aluminum 2.83×1080-m 39.06×10-4 °C Copper 1.72x10-8 Q-m 39.29x10-4 /°C -234.5 °C Silver 1.64x108 Q-m 38.02×10-4 °C -243 °C Tungsten 5.5x10-8 Q-m 45.05×10-4/°C -202 °C

An aluminum cable has a resistance of 41 Q2 at 31 °C. Calculate the resistance of the cable when the sun heats it up Inferred zero Temperature Coefficient @ Resistivity @ 20°C Material resistance 20°C temperature -236 °C Aluminum 2.83×1080-m 39.06×10-4 °C Copper 1.72x10-8 Q-m 39.29x10-4 /°C -234.5 °C Silver 1.64x108 Q-m 38.02×10-4 °C -243 °C Tungsten 5.5x10-8 Q-m 45.05×10-4/°C -202 °C

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 4.8MCQ: An ac resistance is higher than a dc resistance. True False

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