E-Field Lines and Equipotential Surfaces

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SUMMARY

This discussion centers on the behavior of electric field (E-Field) lines and equipotential surfaces in the presence of conductors and insulators during an experiment involving electrodes in water. It is established that E-Field lines terminate on the surface of a conductor while passing through an insulator in a distorted manner. The analysis specifically addresses the behavior of a "Perfect" circular uncharged conductor and insulator, confirming that E-Field lines do not penetrate the conductor but can pass through the insulator without significant alteration. The conclusion is that a perfect insulator does not influence the E-Field, allowing lines to enter and exit the surface freely.

PREREQUISITES
  • Understanding of electric fields and equipotential surfaces
  • Knowledge of the behavior of conductors and insulators in electric fields
  • Familiarity with dipole arrangements in electrostatics
  • Basic principles of electrostatics and charge distribution
NEXT STEPS
  • Research the properties of electric fields in different materials
  • Study the concept of equipotential surfaces in electrostatics
  • Explore the effects of dielectric materials on electric fields
  • Learn about the mathematical modeling of electric field lines and equipotential surfaces
USEFUL FOR

Students and educators in physics, electrical engineers, and anyone interested in the principles of electrostatics and electric field behavior in various materials.

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Hey all,

I'm a bit confused over an experiment in which we mapped Equipotential Surfaces to then use to draw Electric Field lines using electrodes placed into water to act as a dipole. Along with this, we also had to place a circular conductor and insulator (both uncharged) into the water as well.

From the data, it appears that the E-Field lines do not pass through the conductor (so the E-Field lines terminate on its surface with some coming out the other side perpendicularly, as expected) while it also seems E-Field and equpotential lines were allowed to pass through the insulator in a distorted fashion (I think this is also right).

Anywho, the analysis calls for depicting behavior of the equipotential surfaces and E-Field lines from an outside source on a "Perfect" circular and uncharged conductor and insulator. The conductor case is pretty straightforward (positive and negative charges on opposite sides of the outer surface, E-Field lines terminate on the negatives, come out from the positives, outer surface is an equipotential surface, etc). However, I'm not sure what the behavior for these lines/surfaces would be for a "Perfect" insulator. Would the lines/surfaces behave as if nothing was there (that is, E-Field lines going into and out of the surface, not necessarily perpendicularly, with circular equipotential surfaces)?

Any help would be greatly appreciated. =)
 
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A perfect insulator would not affect the E field at all. Sounds about right.
 
All right, thanks for the help man! :biggrin:
 

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