What is the temperature of a flashlight bulb filament when turned on?
August 25th, 2008 | by admin |
brilliantdance12 asked:
A common flashlight bulb is rated at 0.2A and 2.9V. If the resistance of the bulb’s tungsten filament at room temperature (20°C) is 1.10Ω, estimate the temperature of the tungsten filament when the bulb is turned on.
Larry
A common flashlight bulb is rated at 0.2A and 2.9V. If the resistance of the bulb’s tungsten filament at room temperature (20°C) is 1.10Ω, estimate the temperature of the tungsten filament when the bulb is turned on.
Larry
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