Lecture in Electric Potential

(Last Updated On: December 8, 2017)
Applied Physics Lecture: Electric Potential

Lesson Objectives – the students should be able to:

  • Write from memory the definitions of electric potential, and electric potential difference.
  • Distinguish between electric potential, electric potential energy, and electric potential difference.
  • Draw the electric field pattern and equipotential line pattern which exist between charged objects.
  • Determine the magnitude of the potential at a point a known distance from a point charge or an arrangement of point charges.
  • State the relationship between electric potential and electric field and determine the potential difference between two points a fixed distance apart in a region where the electric field is uniform.
  • Determine the kinetic energy in both joules and electron volts of a charged particle which is accelerated through a given potential difference.
  • Explain what is meant by an electric dipole and determine the magnitude of the electric dipole moment between two point charges.
  • Given the dimensions, distance between the plates, and the dielectric constant of the material between the plates, determine the magnitude of the capacitance of a parallel plate capacitor.
  • Given the capacitance, the dielectric constant, and either the potential difference or the charge stored on the plates of a parallel plate capacitor, determine the energy and the energy density stored in the capacitor.
  • Understand the functions and operations of Cathode Ray Tube: TV and Computer Monitors, Oscilloscope
  • Know The Electrocardiogram (ECG or EKG)

Lecture on Electric Potential PPT

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Summary of Chapter 17

  • Electric potential energy:
    Electric potential energy:
  • Electric potential difference: work done to move charge from one point to another
  • Relationship between potential difference and field:
    Relationship between potential difference and field:
  • Equipotential: line or surface along which potential is the same
  • Electric potential of a point charge:
    Electric potential of a point charge:
  • Electric dipole potential:
    Electric dipole potential:
  • Capacitor: nontouching conductors carrying equal and opposite charge
  • Capacitance:
    Capacitance Formula:
  • Capacitance of a parallel-plate capacitor:
    Capacitance of a parallel-plate capacitor:
  • A dielectric is an insulator
  • Dielectric constant gives ratio of total field to external field
  • Energy density in electric field:
    Energy density in electric field:

Units of Chapter 17 – Keywords

  • Electric Potential Energy and Potential Difference
  • Relation between Electric Potential and Electric Field
  • Equipotential Lines
  • The Electron Volt, a Unit of Energy
  • Electric Potential Due to Point Charges
  • Potential Due to Electric Dipole; Dipole Moment
  • Capacitance
  • Dielectrics
  • Storage of Electric Energy
  • Cathode Ray Tube: TV and Computer Monitors, Oscilloscope
  • The Electrocardiogram (ECG or EKG)

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Lecture in Electric Potential
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