The resistance of a 15 cm length aluminum cylinder is 2.5 x 10-5 0. If the resistivity of aluminum p = 3.0 x 10-8- m the cross-sectional area (A) of the cylinder is O a. 1.8 x 10-4 m2 Ob. 1.8 x 10-2 m2 Oc. 1.8 x 10-3 m2 Od.0.18 m2

The resistance of a 15 cm length aluminum cylinder is 2.5 x 10-5 0. If the resistivity of aluminum p = 3.0 x 10-8- m the cross-sectional area (A) of the cylinder is O a. 1.8 x 10-4 m2 Ob. 1.8 x 10-2 m2 Oc. 1.8 x 10-3 m2 Od.0.18 m2

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter27: Current And Resistance

Section: Chapter Questions

Problem 27.5CQ: How does the resistance for copper and for silicon change with temperature? Why are the behaviors of...

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Concept explainers

Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.

Question

The resistance of a 15 cm length aluminum cylinder is 2.5 x 10-50. If the resistivity of aluminum p = 3.0 x 10-8 m the cross-sectional area (A) of the
cylinder is
%3D
a. 1.8 x 10-4 m?
O b. 1.8 x 10-2 m?
Oc. 1.8 x 10-3 m²
O d. 0.18 m2

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