A certain lightbulb has a tungsten filament with a resistance of 17.8 Ω when at 20.0°C and 147 Ω when hot. Assume the resistivity of tungsten varies linearly with temperature even over the large temperature range involved here. Find the temperature of the hot filament. See image for the orignial question. A certain lightbulb has a tungsten filament with a resistance of 17.8 N when at 20.0°C and 147 N when hot. Assume the resistivity of tungsten varies linearly withtemperature even over the large temperature range involved here. Find the temperature of the hot filament.°C

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A certain lightbulb has a tungsten filament with a resistance of 17.8 Ω when at 20.0°C and 147 Ω when hot. Assume the resistivity of tungsten varies linearly with temperature even over the large temperature range involved here. Find the temperature of the hot filament.

A certain lightbulb has a tungsten filament with a resistance of 17.8 Ω when at 20.0°C and 147 Ω when hot. Assume the resistivity of tungsten varies linearly with temperature even over the large temperature range involved here. Find the temperature of the hot filament.

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter27: Current And Resistance

Section: Chapter Questions

Problem 27.81AP: The potential difference across the filament of a light-bulb is maintained at a constant value while...

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Concept explainers

Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.

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See image for the orignial question.

A certain lightbulb has a tungsten filament with a resistance of 17.8 N when at 20.0°C and 147 N when hot. Assume the resistivity of tungsten varies linearly with
temperature even over the large temperature range involved here. Find the temperature of the hot filament.
°C

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