CONCEPTUAL PHYSICAL SCI.-MOD.MAST.PHY.
6th Edition
ISBN: 9780134092263
Author: Hewitt
Publisher: PEARSON
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Textbook Question
Chapter 8, Problem 50TAS
The power in watts marked on a light bulb is not an inherent property of the bulb; rather, it depends on the voltage to which it is connected, usually 110 or 120 V.
- (a) Show that the current in a 300-W bulb connected in a 120-V circuit is 2.5A.
- (b) Compute the resistance of the bulb's filament.
- (c) Assuming this resistance does not change, compute the bulb's power output if the bulb is instead connected to a 24-V battery.
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Chapter 8 Solutions
CONCEPTUAL PHYSICAL SCI.-MOD.MAST.PHY.
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