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College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

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College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

When is more power delivered to a lightbulb, immediately after it is turned on and the glow of the filament is increasing or after it has been on for a few seconds and the glow is steady?

To determine
The situation at which more power is delivered to the light bulb, immediately after it is turned on and the glow of the filament is increasing or after it has been on for a few seconds and the glow is steady.

Explanation

Power P delivered to bulb depends on applied voltage V , current I and resistance of the filament R . The relation is P=I2R

From the relation P=I2R it is understood

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