College Physics
1st Edition
ISBN: 9781938168000
Author: Paul Peter Urone, Roger Hinrichs
Publisher: OpenStax College
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Textbook Question
Chapter 20, Problem 3CQ
If two different wires having identical cross-sectional areas carry the same current, will the drift velocity be higher or lower in the better conductor? Explain in terms of the equation
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If a metallic wire of cross sectional area 4.0 x 10-6 m2 carries a current of 6.0 A and has a mobile charge density of 4.24 x 1028 carriers/m3, what is the average drift velocity of the mobile charge carriers? (charge value = 1.6 x 10-19 C)
A piece of a conductive square-shaped material with a side length of 3 cm and placed in an electric field of 3v / m and passed through it a current of density 3A / m ^ 2 How much electrical resistance does this piece have?
A current of I = 7.3 A is passing through a conductor with cross sectional area A = 6.5 × 10-4 m2. The charge carriers in the conductor, electrons, have a number density n = 2.1 x 1027 m-3.
Calculate the numerical value of the drift velocity, v, in m/s.
vd =
Chapter 20 Solutions
College Physics
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