Answered: A 2L 2r L B 2r 4L 2L с

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

if the wires in the figure are all made of the same metal rank them in terms of greatest to least resistance

Expert Solution

Step 1: Resistance of A and B

A) The resistance of A is given by,

$bold italic R subscript bold A bold space bold equals bold space bold space fraction numerator bold rho bold space bold L over denominator bold pi bold space bold r to the power of bold 2 end fraction bold space$

B) The resistance of B is given by,

$R subscript B space equals space rho space fraction numerator L over denominator pi space left parenthesis 2 r right parenthesis squared end fraction bold italic R subscript bold B bold space bold equals bold space bold 1 over bold 4 bold space fraction numerator bold rho bold space bold L over denominator bold pi bold space bold r to the power of bold 2 end fraction$

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