A tungsten filament used in a flashlight bulb operates at 0.20 A and 3.0 V. If its resi...
A tungsten filament used in a flashlight bulb operates at 0.20 A and 3.0 V. If its resistance at 20°C is 
. what is the temperature of the filament when the flashlight is on?
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Solutions For Problems in Chapter 18
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