The figure below shows three lamps connected to a 120-V AC (rms) household supply voltage. Lamps 1 and 2 have 100-W bulbs; lamp 3 has a 60.0-W bulb. 120 V Irms, lamp 1 (a) For each bulb, find the rms current. A A A Irms, lamp 2 = Irms, lamp 3 = Rlamp 1 Rlamp 2 (b) For each bulb, find the resistance. Rlamp 3 = = = 1 = boboibo C C C Ω Ω Ω
The figure below shows three lamps connected to a 120-V AC (rms) household supply voltage. Lamps 1 and 2 have 100-W bulbs; lamp 3 has a 60.0-W bulb. 120 V Irms, lamp 1 (a) For each bulb, find the rms current. A A A Irms, lamp 2 = Irms, lamp 3 = Rlamp 1 Rlamp 2 (b) For each bulb, find the resistance. Rlamp 3 = = = 1 = boboibo C C C Ω Ω 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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Transcribed Image Text:The figure below shows three lamps connected to a 120-V AC (rms) household supply voltage. Lamps 1 and 2 have 100-W bulbs; lamp 3 has a 60.0-W bulb.
120 V
(a) For each bulb, find the rms current.
A
A
A
Irms, lamp 1
Irms, lamp 2
Irms,
lamp 3
Rlamp 1
Rlamp 2
(b) For each bulb, find the resistance.
Ω
Ω
Ω
Rlamp 3
=
=
=
=

Transcribed Image Text:A certain lightbulb is rated at 60.0 W when operating at an rms voltage of 120 V.
(a) What is the peak voltage applied across the bulb?
(b) What is the resistance of the bulb?
Ω
(c) Does a 100-W bulb have greater or less resistance than a 60.0-W bulb?
greater
less
Explain.
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