====== Acceleration field ======

|< 100% >|
| //[[user/Stan Zurek]], Acceleration field, Encyclopedia Magnetica//, \\ @PAGEL@ |

**Acceleration field** - an [[electromagnetic field]] generated by [[electric charge]] and [[radiated]] during its acceleration.[(Stohr>[[https://books.google.co.uk/books?isbn=3540302832|Joachim Stöhr, Hans Christoph Siegmann, Magnetism: From Fundamentals to Nanoscale Dynamics, Springer Science & Business Media, 2007, ISBN 3540302832]], p. 105)][(Purcell>[[http://google.com/books?isbn=9781107014022|E.M. Purcell, D.J. Morin, Electricity and magnetism, 3rd edition, Cambridge University Press, 2013, ISBN 9781107014022]])]

An electromagnetic field generated by a charge moving at a constant velocity can be referred to as [[velocity field]].

<box 60% left #f0f0f0>
Diagram illustrating generation of [[electromagnetic field]] by an [[electric charge]]: a static charge (grey small circle at the centre) generates [[electrostatic field]] (blue area) which statically extends away into space. A sudden acceleration of the charge (dark blue small circle) creates an electromagnetic pulse (red ring) which [[radiation|radiates]] away into space at the [[speed of light]], and the space far away still contains the electrostatic field from the time when the charge was stationary (as indicated by grey lines). A charge moving at a constant velocity //v// generates electric and magnetic field attached with the charge (green area). The [[field lines]] (black lines) show the direction and intensity of electric field.[(Purcell)]
[[file/electromagnetic_field_magnetica_png|{{electromagnetic_field_magnetica.png}}]]
{{page>insert/by_SZ}}
</box>
<box 30% left #f0f0f0>
[[Magnetic field]] around a moving [[electron]]; the distribution of magnetic field can be calculated from [[Biot-Savart law]][(Maxfield>[[https://books.google.co.uk/books?isbn=9780080949666|C. Maxfield et al., Electrical Engineering: Know It All, Newnes, 2011, ISBN 9780080949666]], p. 1004)]
[[file/biot-savart_electron_magnetica_png|{{biot-savart_electron_magnetica.png}}]]
{{page>insert/by_SZ}}
</box>

{{page>insert/paypal}}

===== See also =====
  * [[Velocity field]]
  * [[Electric charge]]
  * [[Electric field]]
  * [[Magnetic field]]
  * [[Electromagnetic field]]

===== References =====
~~REFNOTES~~

{{tag> Acceleration_field Electromagnetic_field Electrostatic_field Magnetic_field Magnetostatic_field Counter}}