(a) An aluminum power transmission line has a resistance of 0.0580 Ω / km . What is its mass per kilometer? (b) What is the mass per kilometer of a copper line having the sameresistance? A lower resistance would shorten the heating time. Discuss the practical limits to speeding the heating by lowering the resistance.

(a) An aluminum power transmission line has a resistance of 0.0580 Ω / km . What is its mass per kilometer? (b) What is the mass per kilometer of a copper line having the sameresistance? A lower resistance would shorten the heating time. Discuss the practical limits to speeding the heating by lowering the resistance.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter10: Direct-current Circuits

Section: Chapter Questions

Problem 66P: A short circuit in a 120-V appliance cord has a0.500- resistance. Calculate the temperature rise of...

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