30 A)4.321 m B)3.712 m C)2.616 m D)2.145 m E)1.876 m A 500-W heating coil designed to operate from 100 V is made of Nichrome wire 0.500 mm indiameter. Assuming that the resistivity of the Nichrome remains constant at its 20.0°C value,find the length of wire used. Taken as p = 1.5x10-6 Q.m for Nichrome and T=3.14

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Answered: A 500-W heating coil designed to…

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter28: Current And Resistance

Section: Chapter Questions

Problem 57PQ

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A 500-W heating coil designed to operate from 100 V is made of Nichrome wire 0.500 mm in diameter. Assuming that the resistivity of the Nichrome remains constant at its 20.0°C value, find the length of wire used. Taken as p = 1.5x10-6 Q.m for Nichrome and T=3.14