Electricity and Magnetism question.

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SUMMARY

This discussion addresses two fundamental questions in electricity and magnetism. The first question pertains to the implications of electric field lines crossing a closed surface that encloses no charge, which aligns with Gauss's Law indicating that the net electric flux through the surface is zero. The second question explores the conditions under which Coulomb's Law can be applied to determine electric field strength, emphasizing its applicability only under static conditions with stationary charges. Understanding these principles is essential for mastering electrostatics.

PREREQUISITES
  • Understanding of Gauss's Law in electrostatics
  • Familiarity with Coulomb's Law and its mathematical implications
  • Knowledge of electric field concepts and properties
  • Basic principles of static electricity and charge behavior
NEXT STEPS
  • Study Gauss's Law and its applications in electrostatics
  • Learn about the mathematical formulation of Coulomb's Law
  • Explore the concept of electric field lines and their significance
  • Investigate the conditions for static versus dynamic charge scenarios
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Students of physics, educators teaching electricity and magnetism, and anyone seeking to deepen their understanding of electrostatics and electric field concepts.

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Hello I have these two questions on electricity and magnetism which I don't understand very well these are:

(Q1) If a closed surface encloses no charge, and electric field lines cross the surface.

(Q2) Under what conditions can coloumb's law be used to find the electric field strength.


Thanks a lot
 
Physics news on Phys.org
Coulombs law completes Electrostatics. If you understand what it implies mathematically, you're done with statics. But it does not hold for mobile charges. Under static conditions you can use it to find E.
 
A single function axiomatic system? Two, as charges are static. Other than what should be considered as implicit, such as Euclidian space + time, and Newtonian mechanics, I can think of only one other axiom; that is continuity of charge.
 

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