Darren Reiher
Monday, April 16, 2012
Estimate the temperature of lightbulb?
A 110 W lightbulb has a resistance of about 12 when cold (20°C) and 132 when on (hot). Estimate the temperature of the filament when hot uming an average temperature coefficient of resistivity α = 0.0060 (C°)-1. ____°C
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