
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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![A light bulb is connected to a 120.0-V wall socket.
The current in the bulb depends on the time t
according to the relation 1 = (0.840 A) sin [(432
rad/s)t]. (a) What is the frequency of the alternating
current? (b) Determine the resistance of the bulb's
filament. (c) What is the average power delivered to
the light bulb?
(a) Number i
(b) Number i
(c) Number
i
Units
Units
Units
<>
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Transcribed Image Text:A light bulb is connected to a 120.0-V wall socket.
The current in the bulb depends on the time t
according to the relation 1 = (0.840 A) sin [(432
rad/s)t]. (a) What is the frequency of the alternating
current? (b) Determine the resistance of the bulb's
filament. (c) What is the average power delivered to
the light bulb?
(a) Number i
(b) Number i
(c) Number
i
Units
Units
Units
<>
<>
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