An aluminum rod with a square cross section is l.3 m long and 5.2 mm on edge.
Question:
An aluminum rod with a square cross section is l.3 m long and 5.2 mm on edge.
(a) What is the resistance between its ends?
(b) What must be the diameter of a cylindrical copper rod of length 1.3 m if its resistance is to be the same as that of the aluminum rod?
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We denote the copper rod with subscript c and the alum...View the full answer
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Related Book For 
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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