Say that we have 3 light bulbs, arranged in the form of the following diagram. Light bulbs can be modeled as resistors. They are attached to a battery with voltage drop V. a) What determines the brightness of light bulbs? Explain why. b) In this arrangement, what values for resistance do we need to make the light bulbs such that R₁ and R2 is half as bright as R3? c) What values of resistance do we need so that all three light bulbs are the same brightness? d) What values of resistance do we need so that R₁ and R₂ are twice as bright as R3? e) What values of resistance do we need so that R₁ is twice as bright as R₂, and R₂ is twice as bright as R3? R1 R2 www +₁+ R3
Say that we have 3 light bulbs, arranged in the form of the following diagram. Light bulbs can be modeled as resistors. They are attached to a battery with voltage drop V. a) What determines the brightness of light bulbs? Explain why. b) In this arrangement, what values for resistance do we need to make the light bulbs such that R₁ and R2 is half as bright as R3? c) What values of resistance do we need so that all three light bulbs are the same brightness? d) What values of resistance do we need so that R₁ and R₂ are twice as bright as R3? e) What values of resistance do we need so that R₁ is twice as bright as R₂, and R₂ is twice as bright as R3? R1 R2 www +₁+ R3
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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Question
![Say that we have 3 light bulbs, arranged in the form of the following
diagram. Light bulbs can be modeled as resistors. They are attached
to a battery with voltage drop V.
a) What determines the brightness of light bulbs? Explain why.
b) In this arrangement, what values for resistance do we need to make
the light bulbs such that R₁ and R₂ is half as bright as R3?
c) What values of resistance do we need so that all three light bulbs are
the same brightness?
d) What values of resistance do we need so that R₁ and R₂ are twice as
bright as R3?
e) What values of resistance do we need so that R₁ is twice as bright as
R₂, and R₂ is twice as bright as R3?
R1
R2
www
+|+
R3
www](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F474a784e-9f95-4813-81d7-a60d3fc34f86%2F76db686c-4924-4a18-b51e-b58b3327c9e6%2Fsfkwnron_processed.png&w=3840&q=75)
Transcribed Image Text:Say that we have 3 light bulbs, arranged in the form of the following
diagram. Light bulbs can be modeled as resistors. They are attached
to a battery with voltage drop V.
a) What determines the brightness of light bulbs? Explain why.
b) In this arrangement, what values for resistance do we need to make
the light bulbs such that R₁ and R₂ is half as bright as R3?
c) What values of resistance do we need so that all three light bulbs are
the same brightness?
d) What values of resistance do we need so that R₁ and R₂ are twice as
bright as R3?
e) What values of resistance do we need so that R₁ is twice as bright as
R₂, and R₂ is twice as bright as R3?
R1
R2
www
+|+
R3
www
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Shouldn't part d be 1/2 instead of 4 because lower resistance means higher brightness?
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