The figure below shows three lightbulbs connected to a 120-V AC (rms) household supply voltage. Bulbs 1 and 2 have a power rating of 45 W, and bulb 3 has a 100-W rating. 120 V 2 3 (a) Find the rms current in each bulb. Ibulb 1 = A Ibulb 2 A Ibulb 3 = A (b) Find the resistance of each bulb. Rbulb 1 = Ω Rbulb 2 = Ω Rbulb 3 = Ω (c) What is the total resistance of the combination of the three lightbulbs? Ω

The figure below shows three lightbulbs connected to a 120-V AC (rms) household supply voltage. Bulbs 1 and 2 have a power rating of 45 W, and bulb 3 has a 100-W rating. 120 V 2 3 (a) Find the rms current in each bulb. Ibulb 1 = A Ibulb 2 A Ibulb 3 = A (b) Find the resistance of each bulb. Rbulb 1 = Ω Rbulb 2 = Ω Rbulb 3 = Ω (c) What is the total resistance of the combination of the three lightbulbs? Ω

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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The figure below shows three lightbulbs connected to a 120-V AC (rms) household supply voltage. Bulbs 1 and 2 have a power rating of 45 W, and bulb 3 has a 100-W
rating.
120 V
1
2
3
(a) Find the rms current in each bulb.
Ibulb 1
A
=
Ibulb 2
=
A
Ibulb 3 =
A
(b) Find the resistance of each bulb.
Ω
=
1
R bulb
Rbulb 2 =
Ω
Rbulb 3
Ω
=
(c) What is the total resistance of the combination of the three lightbulbs?
Ω
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