A 40 W (120 V) lightbulb has a tungsten filament of thickness 0.040 mm. The filament's operating
Question:
A 40 W (120 V) lightbulb has a tungsten filament of thickness 0.040 mm. The filament's operating temperature is 1500°C.
a. How long is the filament?
b. What is the resistance of the filament at 20°C?
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Related Book For
College Physics A Strategic Approach
ISBN: 9780321595492
2nd Edition
Authors: Randall D. Knight, Brian Jones, Stuart Field
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