Importance/Use of Gauss' Law and Ampere's Circuital Law

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SUMMARY

This discussion centers on the application and significance of Gauss' Law (GL) and Ampere's Circuital Law (ACL) in physics, particularly in simplifying calculations involving electric fields (E) and magnetic fields (B). The conditions for effectively using these laws hinge on symmetry, specifically spherical, cylindrical, and planar symmetries. For GL, E can be extracted from the integral if it is perpendicular and uniform across the Gaussian surface, while for ACL, B must be tangent and constant along the Amperian loop. Understanding these principles is crucial for scientists and engineers in accurately applying these laws to real-world scenarios.

PREREQUISITES
  • Understanding of Gauss' Law and its mathematical formulation
  • Familiarity with Ampere's Circuital Law and its applications
  • Knowledge of electric and magnetic field concepts
  • Basic principles of symmetry in physics
NEXT STEPS
  • Study the conditions for applying Gauss' Law in various charge distributions
  • Learn about the derivation and implications of symmetry in electric fields
  • Explore the mathematical proofs related to cylindrical symmetry and its effects on field uniformity
  • Investigate practical applications of Gauss' Law and Ampere's Law in engineering contexts
USEFUL FOR

Physics students, electrical engineers, and anyone interested in the practical applications of electromagnetic theory will benefit from this discussion.

  • #31
@nasu you are right

1/8th the flux through the entire cube

And since only 3/6 of the faces have actual nonzero flux through them

That 1/8th gets divided by 3

1/24th through each of the facesSorry for being absent minded and apologies to OP for not being more measured with my responses.
 

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