Potential Energy of Electron & Proton in an Electric Field

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SUMMARY

The discussion centers on the potential energy of electrons and protons in an electric field. It establishes that as an electron moves closer to the source of an electric field, its potential energy decreases, while its kinetic energy increases due to acceleration from infinity. The conversation emphasizes the importance of specifying the direction of the electric field, as the force acting on charged particles is defined by the equation F = qE, where q represents charge in Coulombs and E denotes the electric field strength in Volts/meter.

PREREQUISITES
  • Understanding of electric fields and their properties
  • Familiarity with Coulomb's law and charge interactions
  • Basic knowledge of kinetic and potential energy concepts
  • Proficiency in vector mathematics related to forces
NEXT STEPS
  • Study the principles of electric field direction and its effects on charged particles
  • Explore the relationship between potential energy and kinetic energy in electric fields
  • Learn about the mathematical formulation of electric forces using F = qE
  • Investigate the behavior of different charged particles (e.g., electrons vs. protons) in electric fields
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Students and professionals in physics, electrical engineering, and anyone interested in understanding the dynamics of charged particles in electric fields.

da_coolest
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when an electron moves closer to the electric field source, does the potential energy get higher or lower?

if it is being accelerated from the infinity, then at the infinity it should have the lowest kinetic energy? then when it is closer to the source of the field, it should have the highest kinetic energy??

ok then what about a proton?
 
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da_coolest said:
when an electron moves closer to the electric field source, does the potential energy get higher or lower?

if it is being accelerated from the infinity, then at the infinity it should have the lowest kinetic energy? then when it is closer to the source of the field, it should have the highest kinetic energy??

ok then what about a proton?

Welcome to the PF. Your question is a bit incomplete, but maybe that is what is confusing you. You need to specify what the Electric field's direction is. Electric field is a vector field, having magnitude and direction. The force on a charged particle is

F = qE

Where q is the value of the charge in Coulombs, and E is the Electric field value in Volts/meter. The direction of the force is determined by both the charge polarity and the direction of the vector E field.
 
Last edited:

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