Gauss' law (1/r^3 instead of 1/r^2)

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SUMMARY

If the electric field of a point charge were proportional to 1/(r^3) instead of 1/(r^2), Gauss's law would not hold as it currently does. The discussion highlights that the flux through a spherical Gaussian surface would not remain constant as the radius changes, violating the principle that the total electric flux through a closed surface is proportional to the enclosed charge. This deviation from the inverse square law fundamentally alters the relationship between charge and electric field strength.

PREREQUISITES
  • Understanding of Gauss's law in electrostatics
  • Familiarity with electric field concepts
  • Knowledge of spherical symmetry in physics
  • Basic calculus for evaluating flux integrals
NEXT STEPS
  • Study the implications of electric fields proportional to 1/(r^n) for various values of n
  • Explore the derivation and applications of Gauss's law in electrostatics
  • Investigate the mathematical treatment of electric flux through different geometries
  • Learn about the physical significance of electric field lines and their relation to charge distribution
USEFUL FOR

Physics students, educators, and anyone interested in electrostatics and the mathematical foundations of electric fields.

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Homework Statement


If the electric field of a point charge were proportional to 1/(r^3) instead of 1/(r^2), would Gauss's law still be valid? Explain reasoning.


Homework Equations


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The Attempt at a Solution


Considered a spherical Gaussian surface centered on a single point charge.
 
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How would the flux through a sphere of radius one centered on the charge compare with the flux through a sphere of radius two?
 
What is true of the entire sphere is also true of any portion of its surface, I believe...
 

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