A gold wire has a resistance R. If its length and diameter are both cut in half, its resistivity will: O decrease by a factor of 2 O increase by a factor of 4 O stay the same O increase by a factor of 2 O decrease by a factor of 4

A gold wire has a resistance R. If its length and diameter are both cut in half, its resistivity will: O decrease by a factor of 2 O increase by a factor of 4 O stay the same O increase by a factor of 2 O decrease by a factor of 4

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.

Question

A gold wire has a resistance R. If its length and diameter are both cut in half, its resistivity will:
O decrease by a factor of 2
O increase by a factor of 4
O stay the same
O increase by a factor of 2
O decrease by a factor of 4

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