Example: The filament of a 240 V lamp is to be manufactured from a wire having a diameter of 0.002 mm and a resistivity of 4.3 u2.cm at 20 °C. If a-0.005/°C, what 1 ength of filament is necessary if the lamp is to dissipate 60 watts at a filament temperature of 2420°C.
Example: The filament of a 240 V lamp is to be manufactured from a wire having a diameter of 0.002 mm and a resistivity of 4.3 u2.cm at 20 °C. If a-0.005/°C, what 1 ength of filament is necessary if the lamp is to dissipate 60 watts at a filament temperature of 2420°C.
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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![Example: The filament of a 240 V lamp is to be manufactured from a wire having a
diameter of 0.002 mm and a resistivity of 4.3 µ2.cm at 20 °C. If a=0.005/C, what 1
ength of filament is necessary if the lamp is to dissipate 60 watts at a filament
temperature of 2420°C.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff17dde35-f714-4bba-b1c1-3981ef2824ec%2Fdf8548e2-9abe-4670-809b-c73748e8c73a%2F426h4hf_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Example: The filament of a 240 V lamp is to be manufactured from a wire having a
diameter of 0.002 mm and a resistivity of 4.3 µ2.cm at 20 °C. If a=0.005/C, what 1
ength of filament is necessary if the lamp is to dissipate 60 watts at a filament
temperature of 2420°C.
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