Does this device give a magnetic field?

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SUMMARY

The discussion centers on the theoretical question of whether a rotating system of two electrostatic particles fixed in a circle generates a magnetic field. The participants reference the Liénard-Wiechert potentials and Maxwell's equations to explore the concept of magnetostatics at low frequencies. It is concluded that while the Liénard-Wiechert potentials apply to individual particles, the magnetic field can be determined by calculating the contributions from each charge and using superposition to find the total field.

PREREQUISITES
  • Understanding of magnetostatics and magnetic fields
  • Familiarity with Liénard-Wiechert potentials
  • Knowledge of Maxwell's equations
  • Basic principles of superposition in electromagnetic theory
NEXT STEPS
  • Study the application of Liénard-Wiechert potentials in magnetostatics
  • Learn how to calculate magnetic fields using superposition
  • Explore advanced concepts in Maxwell's equations related to static fields
  • Investigate the implications of angular velocity on magnetic field generation
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Physicists, electrical engineers, and students studying electromagnetism, particularly those interested in theoretical physics and magnetostatics.

Gh778
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Hello,

It's a theoretical question. I take 2 electrostatic particules fixed in a circle. I turn the circle. Is there a magnetic field ? I suppose the angular velocity very high and I suppose the particules are fixed in the circle. The diameter of the circle is very small. I don't want the electromagnetic wave but the magnetic field at low frequency : magnetostatics.

case1/
http://imageshack.com/a/img537/2970/jIKEwq.png

case2/
http://imageshack.com/a/img540/3374/ldkDxd.png

Regards
 
Last edited by a moderator:
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Gh778 said:
Hello,

It's a theoretical question. I take 2 electrostatic particules fixed in a circle. I turn the circle. Is there a magnetic field ? I suppose the angular velocity very high and I suppose the particules are fixed in the circle. The diameter of the circle is very small.
Look at the Lienard Wiechert potentials. What do they say?

https://en.m.wikipedia.org/wiki/Liénard–Wiechert_potential
 
It's only for one particle ? And I'm looking for the magnetic field at low frequency not the electromagnetic wave.
 
Last edited:
Maxwells equations are linear. Just use superposition.
 
Sorry, but I don't undertand how to use your link to find the magnetostatic field, could you explain please ?
 
Calculate the field due to each charge, as described in the link. Then just add them together to get the total field.
 
Ok, and to have the magnetostatic field ?
 

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