4. A conductor of radius r, length and resistivity phas resistance R. It is melted down and formed into a new conductor, also cylindrical, with one fourth the length of the original conductor. Find the resistance of the new conductor.

4. A conductor of radius r, length and resistivity phas resistance R. It is melted down and formed into a new conductor, also cylindrical, with one fourth the length of the original conductor. Find the resistance of the new conductor.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 3CQ: If two different wires having identical cross-sectional areas carry the same current, will the drift...

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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.

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4. A conductor of radius r, length and resistivity phas resistance R. It is melted down and formed into a
new conductor, also cylindrical, with one fourth the length of the original conductor. Find the
resistance of the new conductor.

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