# Motion of Electric Charges in a Uniform Magnetic Field

This animation portrays the motion of an electric charge in a uniform magnetic field. Starting with the special case where the initial motion is perpendicular to the magnetic field, we see that the motion is circular. The frequency of this circular motion (the cyclotron frequency) does not depend upon the speed of the charge. When generalizing the charge's motion to the full 3-D case, we see that the charge's will spiral along (and around) magnetic field lines.

- Kind: Short
- Year: 2013
- Runtime: 2 min
- By: Animations for Physics and Astronomy
- Genres: Science
- Archive: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Motion_of_Electric_Charges_in_a_Uniform_Magnetic_Field.webm)
- Licence or status: [CC BY 3.0](https://creativecommons.org/licenses/by/3.0) (as the archive states it)
- Credit: Animations for Physics and Astronomy
- Who can watch: Tweens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/commons/70057542?play=1)