10. A 15-W compact fluorescent light bulb is used in a lamp plugged into a 120-V wall socket. You can assume the lamp itself has zero resistance. Find (a) the resistance of the light bulb (b) the maximum current through the bulb the maximum power used by the light bulb

College Physics
10th Edition
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter17: Current And Resistance
Section: Chapter Questions
Problem 41P: Lightbulb A is marked 25.0 W 120. V, and lightbulb B is marked 100. W 120. V. These labels mean that...
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10. A 15-W compact fluorescent light bulb is used in a lamp plugged into a 120-V wall socket. You can
assume the lamp itself has zero resistance. Find
(a) the resistance of the light bulb
(b) the maximum current through the bulb
(c) the maximum power used by the light bulb
(d) if the frequency of the electricity is the typical household value of f = 60 Hz, what are the first
two times that the current going through the light bulb is its maximum value, assuming that
the light is turned on at t = 0?
-3
:
[Answers: (a) R = 960 N, (b) Imax = 0.18 A, (c) Pmax = 30 W, (d) t₁ = 4.2 × 10-³
t2 = 1.3 × 10-² s]
S,
Transcribed Image Text:10. A 15-W compact fluorescent light bulb is used in a lamp plugged into a 120-V wall socket. You can assume the lamp itself has zero resistance. Find (a) the resistance of the light bulb (b) the maximum current through the bulb (c) the maximum power used by the light bulb (d) if the frequency of the electricity is the typical household value of f = 60 Hz, what are the first two times that the current going through the light bulb is its maximum value, assuming that the light is turned on at t = 0? -3 : [Answers: (a) R = 960 N, (b) Imax = 0.18 A, (c) Pmax = 30 W, (d) t₁ = 4.2 × 10-³ t2 = 1.3 × 10-² s] S,
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