Copper has 85 X 1028 free electrons per cubic meter. A 71.0-cm length of 12-gauge copper wire
Question:
(a) How much time does it take for an electron to travel the length of the wire?
(b) Repeat part (a) for 6-gauge copper wire (diameter 4.12 mm) of the same length that carries the same current.
(c) Generally speaking, how does changing the diameter of a wire that carries a given amount of current affect the drift velocity of the electrons in the wire?
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IDENTIFY and SET UP Use Eq 253 to calculate the drift speed and t...View the full answer
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Related Book For 
College Physics
ISBN: 978-0495113690
7th Edition
Authors: Raymond A. Serway, Jerry S. Faughn, Chris Vuille, Charles A. Bennett
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