A 60-w incandescent bulb with a tungsten filament is


A 60-W incandescent bulb with a tungsten filament is connected to a 120-V power supply. When it operates, its temperature increases by 3000?C. If the temperature coefficient of resistivity of tungsten is 4.5×10-3, the power dissipated by the cold bulb is:

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Physics: A 60-w incandescent bulb with a tungsten filament is
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