The filament in an incandescent light bulb is made from


The filament in an incandescent light bulb is made from tungsten (resistivity 5.6 x 10-8 ?·m). The light bulb is plugged into a 120-V outlet and draws a current of 2.07 A. If the radius of the tungsten wire is 0.00312 mm, how long must the wire be?

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Physics: The filament in an incandescent light bulb is made from
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