Answered: Determine the length of a copper wire…

Determine the length of a copper wire that has a resistance of 0.172 Q and cross- sectional area of 1 x 104 m2. The resistivity of copper is 1.72 x 108 Q m. O 1000 m 10000 m O 10 m O 100 m

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 2OQ: Wire B has twice the length and twice the radius of wire A. Both wires are made from the same...

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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

Determine the length of a copper wire that has a resistance of 0.172 Q and cross-
sectional area of 1 x 104 m2. The resistivity of copper is 1.72 x 10- Q m.
O 1000 m
O 10000 m
O 10 m
O 100 m

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