Question 1 only 1.A service station charges a battery using a current of 6.7-A for 5.0 h. How muchcharge passes through the battery? (Ans. 1.2x105 C)An electric clothes dryer has a heating element with a resistance of 8.60 (a) Whatis the current in the element when it is connected to 240 V? (b) How much chargepasses through the element in 50 min? (Assume direct current.)(Ans. 28 A, 8.4x104 C)Calculate the current density in a gold wire at 20°C, if an electric field of 0.740 V/mexists in the wire.2.3.

Given: Current (i)=6.7 A Time (t)= 5 hrs=18000 s The charge = q

Answered: 1. A service station charges a battery…

1. A service station charges a battery using a current of 6.7-A for 5.0 h. How much charge passes through the battery? (Ans. 1.2x105 C)

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter28: Current And Resistance

Section: Chapter Questions

Problem 57PQ

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Question

Question 1 only

1.
A service station charges a battery using a current of 6.7-A for 5.0 h. How much
charge passes through the battery? (Ans. 1.2x105 C)
An electric clothes dryer has a heating element with a resistance of 8.60 (a) What
is the current in the element when it is connected to 240 V? (b) How much charge
passes through the element in 50 min? (Assume direct current.)
(Ans. 28 A, 8.4x104 C)
Calculate the current density in a gold wire at 20°C, if an electric field of 0.740 V/m
exists in the wire.
2.
3.

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