The capacity of a storage battery, such as those used in automobile electrical systems, is rated in ampere-hours (A - h). A 50 A-h battery can supply a current of 50 A for 1.0 h, or 25 A for 2.0 h, and so on. What total energy can be supplied by a 14 V, 70 A - h battery if its internal resistance is negligible? Express your answer in joules. ? x•10" U =

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Author:Raymond A. Serway, John W. Jewett
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Chapter27: Current And Resistance
Section: Chapter Questions
Problem 27.76AP
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The capacity of a storage battery, such as those used in
automobile electrical systems, is rated in ampere-hours (A - h).
A 50 A ·h battery can supply a current of 50 A for 1.0 h, or
25 A for 2.0 h, and so on.
What total energy can be supplied by a 14 V, 70 A · h battery if its internal resistance is negligible?
Express your answer in joules.
IXI
x•10"
U =
J
Submit
Previous Answers Request Answer
X Incorrect; Try Again; 9 attempts remaining
Part B
What volume (in liters) of gasoline has a total heat of combustion equal to the energy obtained in part (a)? (See Section 17.6; the density of gasoline is 900 kg/m.)
Express your answer in liters.
Πνα ΑΣφ
?
V =
L
Submit
Request Answer
Part C
If a generator with an average electrical power output of 0.50 kW is connected to the battery, how much time will be required for it to charge the battery fully?
Express your answer in hours.
Transcribed Image Text:The capacity of a storage battery, such as those used in automobile electrical systems, is rated in ampere-hours (A - h). A 50 A ·h battery can supply a current of 50 A for 1.0 h, or 25 A for 2.0 h, and so on. What total energy can be supplied by a 14 V, 70 A · h battery if its internal resistance is negligible? Express your answer in joules. IXI x•10" U = J Submit Previous Answers Request Answer X Incorrect; Try Again; 9 attempts remaining Part B What volume (in liters) of gasoline has a total heat of combustion equal to the energy obtained in part (a)? (See Section 17.6; the density of gasoline is 900 kg/m.) Express your answer in liters. Πνα ΑΣφ ? V = L Submit Request Answer Part C If a generator with an average electrical power output of 0.50 kW is connected to the battery, how much time will be required for it to charge the battery fully? Express your answer in hours.
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