The resistivity “ρ” of a wire is expressed as ρ(x)=αx where α is a constant and x is thelength of the wire. Then calculate the ratio of R1/R2 if R1 and R2 are the resistance values ofthe wires of resistivity ρ(x)=αx. The wires have lengths 2L and 3L respectively. (Assumethat the area of the wires are the same and constant.)

The resistivity “ρ” of a wire is expressed as ρ(x)=αx where α is a constant and x is thelength of the wire. Then calculate the ratio of R1/R2 if R1 and R2 are the resistance values ofthe wires of resistivity ρ(x)=αx. The wires have lengths 2L and 3L respectively. (Assumethat the area of the wires are the same and constant.)

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 68PQ

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