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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the filament in an incandescent light bulb is made from tungsten resistivity 56 x 10-8 middotm the light bulb is
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