Potential Difference: Equal Charge, Line Charge & Ring Charge

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SUMMARY

The potential difference between equal charges, line charges, and ring charges is not zero everywhere. It is essential to establish a reference point for potential, as this reference is arbitrary. The potential difference can vary depending on the configuration of the charges and their distances from each other. Specifically, the potential difference is zero only at certain points, such as the midpoint between two equal point charges, but not throughout the entire space.

PREREQUISITES
  • Understanding of electrostatics and electric potential
  • Familiarity with Coulomb's Law
  • Knowledge of charge distributions (point charge, line charge, ring charge)
  • Basic grasp of electric field concepts
NEXT STEPS
  • Study the concept of electric potential in detail
  • Learn about the superposition principle in electrostatics
  • Explore the mathematical derivation of potential from different charge distributions
  • Investigate the effects of varying distances on potential difference
USEFUL FOR

This discussion is beneficial for physics students, educators, and professionals in fields related to electrostatics and electrical engineering, particularly those focusing on charge interactions and potential calculations.

Takuya925
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What is the potential difference between two equal charge/line charge/ring charge? Is it zero everywhere, or only in middle of the two?
 
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Before you start talking about potential you have to fix where the zero is and that's arbitrary. But you certainly can't make it zero everywhere in the cases you are talking about.
 

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