Directions: Solve for the given problems. Show your complete solutions. Round off your answers into the proper number of significant figures. 2. A metallic wire has a diameter of 3.80 mm. When the current in the wire is 7.20 A, the drift velocity is 4.86 x 10-5 m/s. What is the density of the free electrons in the metal?

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter1: Units And Measurement
Section: Chapter Questions
Problem 15P: Use the orders of magnitude you found in the previous problem to answer the following questions to...
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Directions: Solve for the given problems. Show your complete solutions.
Round off your answers into the proper number of significant figures.
2. A metallic wire has a diameter of 3.80 mm. When the current in the wire is
7.20 A, the drift velocity is 4.86 x 10-5 m/s. What is the density of the free
electrons in the metal?

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