College Physics
1st Edition
ISBN: 9781938168000
Author: Paul Peter Urone, Roger Hinrichs
Publisher: OpenStax College
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Textbook Question
Chapter 20, Problem 14PE
Repeat the above example on Example 20.3, but for a wire made of silver and given there is one free electron per silver atom.
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Students have asked these similar questions
(a)
Copper
Copper
Nichrome
In the circuit shown in the diagram, two thick wires connect a 1.6 volt battery to a Nichrome (NiCr) wire. Each thick connecting wire is
14 cm long, and has a radius of 9 mm. The thick wires are made of copper, which has 8.44 -1028 mobile electrons per cubic meter,
and an electron mobility of 0.00424 (m/s)/(V/m). The Nichrome wire is 5 cm long, and has a radius of 4 mm. Nichrome has 9.1 -1028
mobile electrons per cubic meter, and an electron mobility of 7.1E-5 (m/s)/(V/m).
What is the magnitude of the electric field in the thick copper wire? 13.571
(b)
What is the magnitude of the electric field in the thin Nichrome wire?
V/m
V/m
The electron drift arises due to the force experienced by electrons in the electric field inside the conductor. But force should cause acceleration. Why then do the electrons acquire a steady average drift speed?
A current of 10 A flows through a resistance of 15 Ω for 2 minutes. How many coulombs and how many electrons are passing through a section of the resistor during that time?
Chapter 20 Solutions
College Physics
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