A wire with a resistance of 6.6 Q is drawn out through a die so that its new length is 4 times its original length. Find the resistance of the longer wire, assuming that the resistivity and density of the material are unchanged.

A wire with a resistance of 6.6 Q is drawn out through a die so that its new length is 4 times its original length. Find the resistance of the longer wire, assuming that the resistivity and density of the material are unchanged.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 6CQ: Use the atomic theory of matter to explain why the resistance of a material should increase as its...

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Concept explainers

Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.

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A wire with a resistance of 6.6 Q2 is drawn out through a die so that its new length is 4 times its original length. Find the resistance of
the longer wire, assuming that the resistivity and density of the material are unchanged.
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