Suppose we have 9 pieces of very fine wire made of tungsten, 0.05 mm in diameter and each 2 meters long. That's approximately the distance between your fingertips when your arms are outstretched in both directions.  If the resistivity of tungsten is 5.6×10−85.6×10−8 ohm•m answer these questions. 1.  What is the resistance of one of the wires,  how much current will it carry if a voltage of 9 V is applied to

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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Suppose we have 9 pieces of very fine wire made of tungsten, 0.05 mm in diameter and each 2 meters long. That's approximately the distance between your fingertips when your arms are outstretched in both directions.  If the resistivity of tungsten is 5.6×10−85.6×10−8 ohm•m answer these questions.

1.  What is the resistance of one of the wires,  how much current will it carry if a voltage of 9 V is applied to it, and how much power will that be? 

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