Answered: 1. A tungsten filament wire has a…

1. A tungsten filament wire has a resistance of 20-N at 25°C. What will be its temperature at 100°C? Tungsten; Resistivity @20°C: 5.5x10-8 N-m Temperature Coefficient @20°C: 45.05x10-4/°C

EBK ELECTRICAL WIRING RESIDENTIAL

19th Edition

ISBN:9781337516549

Author:Simmons

Publisher:Simmons

Chapter7: Luminaires, Ballasts, And Lamps

Section: Chapter Questions

Problem 15R: A good rule-of-thumb to estimate the expected life of a motor, a ballast, or other electrical...

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1. A tungsten filament wire has a resistance of 20-N
at 25°C. What will be its temperature at 100°C?
Tungsten;
Resistivity @20°C: 5.5x10-8 N-m
Temperature Coefficient @20°C: 45.05x10-4/°C

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