Рет қаралды 53,691
033 - Magnetic Field of a Dipole
In this video Paul Andersen explains how current moving through a loop of wire can act as an analog for a magnetic dipole. Magnetic dipoles (like compass needles) respond to magnetic fields created by other magnets.
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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:
Black, Newton Henry. English: The Magnetic Field of a Bar Magnet Revealed by Iron Filings on Paper. A Sheet of Paper Is Laid on Top of a Bar Magnet and Iron Filings Are Sprinkled on It. The Needle Shaped Filings Align with Their Long Axis Parallel to the Magnetic Field. They Clump Together in Long Strings, Showing the Direction of the Magnetic Field Lines at Each Point., 1913. Newton Henry Black, Harvey N. Davis (1913) Practical Physics, The MacMillan Co., USA, p. 242, fig. 200. commons.wikimedia.org/wiki/Fil....
"File:Magnetic Field due to Current.svg." Wikipedia, the Free Encyclopedia. Accessed May 29, 2014. en.wikipedia.org/wiki/File:Mag....
"File:The Earth Seen from Apollo 17.jpg." Wikipedia, the Free Encyclopedia, May 29, 2014. en.wikipedia.org/w/index.php?t....
"File:VFPt Dipole Electric.svg." Wikipedia, the Free Encyclopedia. Accessed May 29, 2014. en.wikipedia.org/wiki/File:VFP....
Maschen. English: Electric and Magnetic Dipoles. Top Is the Electric Dipole, Bottom Left Is the Hypothecal Magnetic Dipole Made from to Two Monopoles, Bottom Right Is the "Real" Magnetic Dipole Found in Ordinary Matter., September 3, 2012. Own work. commons.wikimedia.org/wiki/Fil....
User:Sch. English: The Diagram Shows the Magnetic Meridians of the Earth's Magnetic Field. It Is Centered on the Point at Latitude 30° and Longitude -133.16°., April 8, 2014. Computed and drawn by myself, using File:Mercator_Projection.svg and File:Mercator-proj.png for the globe texture. commons.wikimedia.org/wiki/Fil....