A material is formed into a long rod with a square cross-section 0.50 cm on each side. When a 100 V voltage is applied across a 20 m length of the rod, a 5.0 A current is carried. a) What is the resistivity of the material?

A material is formed into a long rod with a square cross-section 0.50 cm on each side. When a 100 V voltage is applied across a 20 m length of the rod, a 5.0 A current is carried. a) What is the resistivity of the material?

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter26: Current And Resistance

Section: Chapter Questions

Problem 6P: Figure P26.6 represents a section of a conductor of nonuniform diameter carrying a current of I =...

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Question

A material is formed into a long rod with a square cross-section 0.50 cm on each side. When a 100 V voltage is applied across a 20 m length of the rod, a 5.0 A current is carried.

a) What is the resistivity of the material?

ρ = _______ Ω m

b) Is the material a conductor, an insulator, or a semiconductor?

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