Two wires have the same length and the same resistance but are made up of different materials. The resistivities of these materials are1.38 Qm and 3.07 Qm. Obtain the ratio of the smaller cross-sectional area to the greater cross-sectional area.NumberiUnits

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Two wires have the same length and the same resistance but are made up of different materials. The resistivities of these materials a 1.38 Qm and 3.07 Qm. Obtain the ratio of the smaller cross-sectional area to the greater cross-sectional area. Number i Units

Two wires have the same length and the same resistance but are made up of different materials. The resistivities of these materials a 1.38 Qm and 3.07 Qm. Obtain the ratio of the smaller cross-sectional area to the greater cross-sectional area. Number i Units

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 67PQ

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Question

Two wires have the same length and the same resistance but are made up of different materials. The resistivities of these materials are
1.38 Qm and 3.07 Qm. Obtain the ratio of the smaller cross-sectional area to the greater cross-sectional area.
Number
i
Units

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