An old light bulb draws only 54.3 W, rather than its original 60.0 W, due to evaporative thinning of its filament. By what factor is the diameter of the filament reduced, assuming uniform thinning along its length? Neglect any effects caused by temperature differences.
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An old light bulb draws only 54.3 W, rather than its original 60.0 W, due to evaporative thinning of...
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