Department of Energy Argonne National Laboratory Office of Science NEWTON's Homepage NEWTON's Homepage
NEWTON, Ask A Scientist!
NEWTON Home Page NEWTON Teachers Visit Our Archives Ask A Question How To Ask A Question Question of the Week Our Expert Scientists Volunteer at NEWTON! Frequently Asked Questions Referencing NEWTON About NEWTON About Ask A Scientist Education At Argonne Speed of Electric Flow
Name: Frank C.
Status: educator
Age: 20s
Location: N/A
Country: N/A
Date: 3/5/2004


Question:
What is the rate of electron flow in feet per seconds?


Replies:
Frank,

The rate of electron flow in ft/s, the "drift speed" of electrons, depends on a variety of things. More current through a wire means more electrons per second. This can be due to an increased number of electrons or an increased speed. Which it is depends on how tightly packed the free electrons are: the number of electrons per unit length of wire, or electrons per foot. Divide the current (i.e. Coulombs per second) by the charge of an electron (1.60x10^-19 Coulombs) to get the number of electrons per second. Divide this by the linear density of electrons (electrons per foot) to get the average drift speed of the electrons (feet per second).

Dr. Ken Mellendorf
Physics Professor
Illinois Central College



Click here to return to the Physics Archives

NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators, sponsored and operated by Argonne National Laboratory's Educational Programs, Andrew Skipor, Ph.D., Head of Educational Programs.

For assistance with NEWTON contact a System Operator (help@newton.dep.anl.gov), or at Argonne's Educational Programs

NEWTON AND ASK A SCIENTIST
Educational Programs
Building 360
9700 S. Cass Ave.
Argonne, Illinois
60439-4845, USA
Update: June 2012
Weclome To Newton

Argonne National Laboratory