Answered: If the 0.190 mm diameter tungsten…

If the 0.190 mm diameter tungsten filament in a light bulb is to have a resistance of 0.142 N at 20.0°C, how long should it be? The resistivity of tungsten at 20.0°C is 5.60 x 108 n. m. m

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter29: Direct Current (dc) Circuits

Section: Chapter Questions

Problem 19PQ

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19) Please need the correct to this problem with full explanation and methods how you get the answer, please.

If the 0.190 mm diameter tungsten filament in a light bulb is to have a resistance of 0.142 N at 20.0°C, how long should it be? The resistivity of tungsten at 20.0°C is 5.60 x 108 n. m.

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