Part A A 100-W lightbulb has a resistance of about 12 N when cold (20 °C) and 136 N when on (hot). Estimate the temperature of the filament when hot assuming an average temperature coefficient of resistivity a = 0.0045(C)1 Express your answer to two significant figures and include the appropriate units. T = Value Units

Part A A 100-W lightbulb has a resistance of about 12 N when cold (20 °C) and 136 N when on (hot). Estimate the temperature of the filament when hot assuming an average temperature coefficient of resistivity a = 0.0045(C)1 Express your answer to two significant figures and include the appropriate units. T = Value Units

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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