Biot–Savart law | Wikipedia audio article
Channel: wikipedia tts
Date: 28/12/2018

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Biot%E2%80%93Savart_law


00:00:50 1 Equation
00:00:59 1.1 Electric currents (along a closed curve/wire)
00:05:58 1.2 Electric current density (throughout conductor volume)
00:07:31 1.3 Constant uniform current
00:08:34 1.4 Point charge at constant velocity
00:12:36 2 Magnetic responses applications
00:13:05 3 Aerodynamics applications
00:16:32 4 The Biot–Savart law, Ampère's circuital law, and Gauss's law for magnetism
00:17:11 5 See also
00:17:21 5.1 People
00:17:38 5.2 Electromagnetism



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SUMMARY
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In physics, specifically electromagnetism, the Biot–Savart law ( or ) is an equation describing the magnetic field generated by a constant electric current. It relates the magnetic field to the magnitude, direction, length, and proximity of the electric current. The Biot–Savart law is fundamental to magnetostatics, playing a role similar to that of Coulomb's law in electrostatics. When magnetostatics does not apply, the Biot–Savart law should be replaced by Jefimenko's equations. The law is valid in the magnetostatic approximation, and is consistent with both Ampère's circuital law and Gauss's law for magnetism. It is named after Jean-Baptiste Biot and Félix Savart, who discovered this relationship in 1820.