Answered: Calculate the ratio of the resistance…

Calculate the ratio of the resistance of 20.0 m of copper wire 1.8 mm in diameter to 10.0 m of aluminum wire 2.0 mm in diameter, (i.e. RCu RAl

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter29: Direct Current (dc) Circuits

Section29.5: Resistors In Parallel

Problem 29.7CE

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Question

Calculate the ratio of the resistance of 20.0 m of copper wire 1.8 mm in diameter to
10.0 m of aluminum wire 2.0 mm in diameter, (i.e. RCu
RAl
= ?)
(a) 1.25
(b) 1.49
(c) 1.56
(d) 1.65
(e) None of the above

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