Answered: A copper wire has a resistance of 2.4…

A copper wire has a resistance of 2.4 ohms at 20-deg. Find its resistance at 75-deg. Resistance temperature coefficient at 20-degC is 0.034/degC. 3.78 ohms 6.89 ohms 12.18 ohms 7.48 ohms

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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Concept explainers

Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.

Question

A copper wire has a resistance of 2.4 ohms at 20-deg. Find its resistance at 75-deg. Resistance temperature coefficient at
20-degC is 0.034/degC.
3.78 ohms
6.89 ohms
12.18 ohms
7.48 ohms

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