A wire with length L and radius r has a resistance of R. A second wire made from the same material has length 2L and radius 2r. In terms of R, the resistance of the second wire is: a) R/4 b) R/2 c) R d) 2R e) 4R

A wire with length L and radius r has a resistance of R. A second wire made from the same material has length 2L and radius 2r. In terms of R, the resistance of the second wire is: a) R/4 b) R/2 c) R d) 2R e) 4R

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 2OQ: Wire B has twice the length and twice the radius of wire A. Both wires are made from the same...

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Question

Show Work Please (Q1)

A wire with length L and radius r has a resistance of R. A second wire made from the same
material has length 2L and radius 2r. In terms of R, the resistance of the second wire is:
a) R/4
b) R/2
c) R
d) 2R
e) 4R

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