032 Magnetic Field of a Wire

In this video Paul Andersen explains how current moving through a wire will generate a magnetic field tangent to the wire. As the current increases the magnetic field will increase and as the radius from the wire increase the magnitude of the field will decrease. When the current in parallel wires travels in the same direction the wires will experience a force pulling them together.

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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:

File:Electromagnetism.png, n.d. http://commons.wikimedia.org/wiki/Fil....
"File:Hans Christian Ørsted Som Ung.jpg." Wikipedia, the Free Encyclopedia. Accessed May 28, 2014. http://en.wikipedia.org/wiki/File:Han....
"File:Magnet0873.png." Wikipedia, the Free Encyclopedia. Accessed May 18, 2014. http://en.wikipedia.org/wiki/File:Mag....
"File:Oersted Experiment.png." Wikipedia, the Free Encyclopedia. Accessed May 28, 2014. http://en.wikipedia.org/wiki/File:Oer....
Jfmelero. Right Hand Rule Is a Physics Principle Applied to Electric Current Passing through a Straight Wire, Resulting in a Magnetic Field. The Thumb Points in the Direction of the Conventional Current (from Positive to Negative), and the Fingers in the Direction of the Magnetic Field., February 29, 2008. Own work. http://commons.wikimedia.org/wiki/Fil....
———. The Magnetic Field around Two Wires Carrying Current in Opposite Directions Cause the Wires to Feel a Mutual Repulsion., [object HTMLTableCellElement]. Own work. http://commons.wikimedia.org/wiki/Fil....
———. The Magnetic Field around Two Wires Carrying Current in the Same Direction, Cause the Wires to Feel a Mutual Attraction., February 28, 2008. Own work. http://commons.wikimedia.org/wiki/Fil....