The filament of a 127 w 116 v lightbulb is a tungsten wire


The filament of a 127 W (116 V) lightbulb is a tungsten wire 0.05 mm in diameter. At the filament's operating temperature, the resistivity is 3.9×10-7 W·m. How long is the filament?

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Physics: The filament of a 127 w 116 v lightbulb is a tungsten wire
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