A 100-watt incandescent lamp, when hot, has a resistance of 42 Ω, while a 60-watt lamp has a resistance of 823 Ω. Compute the current through each lamp when they are connected in parallel and operated from a 220-volt line.

A 100-watt incandescent lamp, when hot, has a resistance of 42 Ω, while a 60-watt lamp has a resistance of 823 Ω. Compute the current through each lamp when they are connected in parallel and operated from a 220-volt line.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 49P: A copper wire has a resistance of 0.500 at 20.0°C and an iron wire has a resistance of 0.525 at the...

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Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.

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