Comparing Electric Field Intensity in Moving Systems F & F

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SUMMARY

The discussion focuses on the comparison of electric field intensity as measured in two inertial reference systems, F and F', with F' moving at a constant speed v relative to F. In system F, an electric charge Q creates a symmetric, spherical electric field. However, in system F', the electric field is altered due to relativistic effects, leading to a stronger intensity measurement closer to the charge Q. The transformation equations for electric and magnetic fields are crucial for understanding the differences in measurements between the two systems.

PREREQUISITES
  • Understanding of electric field concepts and symmetry
  • Familiarity with inertial reference frames in physics
  • Knowledge of relativistic effects on electric and magnetic fields
  • Proficiency in applying Lorentz transformations
NEXT STEPS
  • Study the Lorentz transformation equations for electric and magnetic fields
  • Explore the concept of field intensity in different inertial frames
  • Investigate the implications of special relativity on electromagnetic fields
  • Learn about the relationship between electric field strength and distance from the charge
USEFUL FOR

Physicists, students of electromagnetism, and anyone interested in the effects of motion on electric and magnetic fields will benefit from this discussion.

jonjacson
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Imagine that we have an intertial system F, and there is an electric charge Q at the origin. Obviously the field is symmetric and spherical in this reference system.

Imagine another inertial system F' that is moving at constant speed v to the right respect to F, and at t=t'=0 both origins coincide.

After one second both systems will measure the intensity of the electric field at an sphere centered at the origin of coordinates (obviously we are talking about an sphere in their own systems of reference).

According to the measurements of F the field created by Q is spherical, What will be the field measured by F'?

My guess is this:

2wf90cx.jpg


The points x' are contracted, and obviously closer to the charge Q at the origin.
We know that the instensity of the field is stronger if you are closer to the source, and weaker if you are further away, the system F' will perform measurements closer to the origin than F, Will F' get higher values for the intensity of the electric field?

Black is F, at rest, F' is green. I have represented in black an sphere in F, and an sphere in F' seen by F.
 
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