A common flashlight bulb is rated at 030 a and28v the, Ask an Expert

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A common flashlight bulb is rated at 0.30 A and2.8V (the values of the current and voltage under operating conditions). If the resistance of the bulb filament at room temperature (20°C) is1.6, what is the temperature of the filament when the bulb is on? The filament is made of tungsten.

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