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Ask A Scientist©
Physics Archive
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Speed of Electricity
name Sean
status student
age 18
Question - What is the speed of electricity, in the medium of small
copper wires or what is the speed of e-mail?
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Roughly 1/3 the speed of light. The speed of email is dominated by the
information-processing time of routers, not by the transmission speed of
electrical signals.
Tim Mooney
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