017 - Resistivity
In this video Paul Andersen explains how the resistivity of a material opposes the flow of charge. Conductors (like metal) will have a low resistivity and insulators will have a high resistivity. Semiconductors will have a moderate resistivity. Since the resistivity is determined by the atomic and molecular structure it is affected by changes in temperature.
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Music Attribution
Title: String Theory
Artist: Herman Jolly
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All of the images are licensed under creative commons and public domain licensing:
artists, GNOME icon. An Icon from the GNOME-Icon-Theme., [object HTMLTableCellElement]. GNOME SVN / GNOME FTP. commons.wikimed....
"File:3 Resistors.jpg." Wikipedia, the Free Encyclopedia. Accessed May 16, 2014. en.wikipedia.or....
"File:3 Resistors.jpg." Wikipedia, the Free Encyclopedia. Accessed May 16, 2014. en.wikipedia.or....
"File:Polycrystalline Silicon Rod.jpg." Wikipedia, the Free Encyclopedia. Accessed May 16, 2014. en.wikipedia.or....
"File:Resistivity Geometry.png." Wikipedia, the Free Encyclopedia. Accessed May 16, 2014. en.wikipedia.or....
Lourenço, André Carvalho; Leandro M. 1/12 from Carbon-12, March 14, 2007. Own work. commons.wikimed....
PHGCOM. English: A 250kg Gold Bar in the Toi Gold Mine, 2007. Own work by uploader, Toi Mine. commons.wikimed....
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