4. Wire A and B are made of the same material and have the same length. However, the diameter of wire A is thrice the diameter of wire B. Wire A has a resistance of 12.0 Q. What is the resistance of wire B?

4. Wire A and B are made of the same material and have the same length. However, the diameter of wire A is thrice the diameter of wire B. Wire A has a resistance of 12.0 Q. What is the resistance of wire B?

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

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.
Wire A and B are made of the same material and have the same length. However, the diameter of wire A is
thrice the diameter of wire B. Wire A has a resistance of 12.0 Q. What is the resistance of wire B?

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