Eight bulbs are connected in parallel to a 160 V source by two long leads oftotal resistance 2.0 2.Part AIf 170 mA flows through each bulb, what is the resistance of each?Express your answer using two significant figures.G| ΑΣΦR=SubmitPart BRequest Answerfraction wasted=SubmitIf 170 mA flows through each bulb, what fraction of the total power is wasted in the leads?Express your answer using two significant figures.|IVE ΑΣΦ?Request AnswerΩ?

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Part A If 170 mA flows through each bulb, what is the resistance of each? Express your answer using two significant figures. 15] ΑΣΦ R= Submit Part B Request Answer fraction wasted = Submit If 170 mA flows through each bulb, what fraction of the total power is wasted in the leads? Express your answer using two significant figures. VE ΑΣΦ pa ? Request Answer Ω www ?

Part A If 170 mA flows through each bulb, what is the resistance of each? Express your answer using two significant figures. 15] ΑΣΦ R= Submit Part B Request Answer fraction wasted = Submit If 170 mA flows through each bulb, what fraction of the total power is wasted in the leads? Express your answer using two significant figures. VE ΑΣΦ pa ? Request Answer Ω www ?

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

Eight bulbs are connected in parallel to a 160 V source by two long leads of
total resistance 2.0 2.
Part A
If 170 mA flows through each bulb, what is the resistance of each?
Express your answer using two significant figures.
G| ΑΣΦ
R=
Submit
Part B
Request Answer
fraction wasted=
Submit
If 170 mA flows through each bulb, what fraction of the total power is wasted in the leads?
Express your answer using two significant figures.
|IVE ΑΣΦ
?
Request Answer
Ω
?

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Step 1: Introduce the theory

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Step 2: Calculate total current in circuit

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Step 3: Calculate voltage drop across resistance

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Step 4: Calculate resistance of each bulb

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Step 5: Calculate the fraction of power dissipated in leads

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