College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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How many free electrons are there in a rectangular block of a conductor whose dimension is 8 m
by 4 m by 3 m? The electrons of this conductor have a drift velocity of 4 m/s when a 9.6 A of current
is applied thru a cross-sectional area of 0.005 m2
. Use electronic charge of 1.6 x 10 –19 coulomb per
electron. Express your answer in scientific notation whose unit is electrons per cubic meter.
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