Lightbulb A is marked "10 W 120 V", and lightbulb B is marked "25 W 120 V". These labels mean that each lightbulb has its respective power delivered to it when it is connected to a constant 120-V source. (a) Find the resistance of each lightbulb. R(10 w 120 V) = R(25 w 120 V) = (b) During what time interval does 1.70 C pass into lightbulb A? At = (c) In what time interval does 2.00 J pass into lightbulb A? At =

Physics for Scientists and Engineers with Modern Physics
10th Edition
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
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Chapter26: Current And Resistance
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Problem 34AP
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Lightbulb A is marked "10 W 120 V", and lightbulb B is marked "25 W 120 V". These labels mean that each lightbulb has its respective power delivered to it when it is connected to a constant 120-V source.

(a)  Find the resistance of each lightbulb.

(b) During what time interval does 1.70 C pass into lightbulb A?

(c) In what time interval does 2.00 J pass into lightbulb A?

(d) Find the cost of running lightbulb A continuously for 16.0 days, assuming the electric company sells its product at $0.110 per kWh.

 

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Lightbulb A is marked "10 W 120 V", and lightbulb B is marked "25 W 120 V". These labels mean that each lightbulb has its respective power delivered to it when it is
connected to a constant 120-V source.
(a) Find the resistance of each lightbulb.
R(10 W 120 Vv) =
R(
25 W 120 V) =
Ω.
(b) During what time interval does 1.70 C pass into lightbulb A?
At =
(c) In what time interval does 2.00 J pass into lightbulb A?
At =
(d) Find the cost of running lightbulb A continuously for 16.0 days, assuming the electric company sells its product at $0.110 per kWh.
$4
Transcribed Image Text:Lightbulb A is marked "10 W 120 V", and lightbulb B is marked "25 W 120 V". These labels mean that each lightbulb has its respective power delivered to it when it is connected to a constant 120-V source. (a) Find the resistance of each lightbulb. R(10 W 120 Vv) = R( 25 W 120 V) = Ω. (b) During what time interval does 1.70 C pass into lightbulb A? At = (c) In what time interval does 2.00 J pass into lightbulb A? At = (d) Find the cost of running lightbulb A continuously for 16.0 days, assuming the electric company sells its product at $0.110 per kWh. $4
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