A certain lightbulb has a tungsten filament with a resistance of 21.7 2 when at 20.0°C and 144 2 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 21.7 2 when at 20.0°C and 144 2 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.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 6CQ: Use the atomic theory of matter to explain why the resistance of a material should increase as its...

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Question

A certain lightbulb has a tungsten filament with a resistance of 21.7 2 when
at 20.0°C and 144 2 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.

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